. . . I thought I'd chime in anyway. My favorites are Wordpress, Yahoo radio, and the CNN live stream. My husband is also a weather underground fanatic for the same reasons Linsey mentioned. Looking forward to learning about more cool freebies.

I LOVE all the Google stuff. Google reader is a LIFE SAVER. No other way I could keep track of all the things I like to read. Gmail is also amazing and I love how it stacks/threads all the emails from my girls group chat. Google Calendar & Bookmarks are awesome because they are essential and accessible on any computer. Notebook is another awesome tool to keep track of ideas instead of a zillion bookmarks. GOOGLE ROCKS!

Toodledo is by far my favorite. It's a really flexible to-do list that just keeps getting better and better. The free version is great, and the paid version is only $15 a year.

Other things I use on a daily basis: Gmail, Google Reader, and Joe's Goals.

I will try to post a link to my favorite free online diet program: Calorie Count

Calorie Count

I used to pay for Weight Watchers' online program but found the same program on CC for free. I have lost 30 pounds in 5 months!

I love www.totallyfreecrap.com!

Every day or every other day it is updated with a link to a free sample. I have gotten tons of free samples daily in my mialbox at home! I check it every day!

Stumbleupon (firefox add-on) to lead me to all the great free web services, thus making it the greatest of all.

I love googlepages.com, a FREE online website editor and hosting from Google. I have my ideasenator there....

firefox - i like the way it works
blogsome - i love their web hosting, and it's where i keep my blog
networthIQ - this is great for helping me actually visualize my financial progress each month
hotmail - i've had it for almost 10 years and i've never had a problem with it, plus my storage keeps growing and growing

My mother lives hundreds of thousands of miles away - she works for an NGO in Paraguay. I would not be able to bear the distance if I couldn't use Skype to talk to her for free over my Interent phone every day. I would never be able to afford long distance charges to Paraguay.

Because Skype is free, I am able to hear the sound of her voice and talk to her every single day, which makes the distance more bearable, and enables her to continue doing her good work down there.

Pandora, Sky.fm - for radio
Google Reader
Wikipedia - a quick search was never so easy
YouTube
SiteMeter - website tracking
Flickr - photo searching

Everything Google = wonderful! And I'm also a fan of Joe's Goals and Ravelry as mentioned above. Remember the Milk is great as well, and integrates with my Google Calendar even!

... to Craigslist! Wonderful for used items, selling stuff, and finding prospective clients.

My top 3 would be:
1. www.slickdeals.net - personally, I like it more than FatWallet because it has friendlier message boards and easier navigation, not to mention all the great deals and freebies. :D
2. www.craigslist.com - do I even have to explain?
3. www.campusi.com - it's a fast and easy-to-use service that finds the lowest price for the book (CD, movie, etc.) you're interested in. It's really useful when I have to purchase textbooks...

I adore http://freecycle.org.

Gmail, for email and storage
Netvibes, for my start page
Mint, for keeping track of my transactions in all my different accounts
Newsvine, for keeping up on the news
Facebook, for keeping in touch with and sharing things with my friends
del.icio.us, for gathering links and organizing project sources
Ma.gnolia, for keeping copies of news articles
Clipmarks, for finding cool things on the Web

I love Netvibes (a free RSS reader). I like the way the feeds show up in their own panels, like sticky notes -- I can arrange and rearrange to my anal-retentive heart's content.

Also, I can add my own sticky notes to a page; for example, my "Monies" tab has personal finance blogs and a list of things I want to buy. Oh, and a list for Christmas presents, because it's never too early to find a good deal on the perfect present. :)

I cannot do without Facebook, Craig's List(free section!), Yahoo Mail, iGoogle live TV, or Youtube, but here are some sites that haven't been mentioned:

Yelp!- a great online service for consumer reviews...I just moved to San Francisco and I've used it to find cool restaurants, bars, even my Dentist, who is great! They use a 5 star rating system as well, so it helps me find trustworthy people (like a locksmith who won't overcharge) quickly.

Hopstop - if you live in a big city, this website will map out the easiest bus/sub/train routes for you...you can also use it on your phone. I also use Nextbus on my cell because the bus schedules in SF are jacked, and this site gives real time arrivals.

Open Table - lets you make reservations and earn points toward free meals! I sometimes use this in conjunction with Restaurant.com's $25 gift certificates you can buy for $10.

Other Stuff:
FotoFlexer , an online photo editor that makes it easy to edit and transfer photos to/from Facebook or Myspace

Ikea Hacker and Instructables are fun for DIY ideas

Cooking By Numbers because sometimes you have to work with what's in your house

www.ebay.com
The world's largest garage sale with on-line bidding. I have been ebaying for 8 years and got lots of great bargains ranging from a cool Etnies Skateboard backpack with a $42 price tag for only $25, name brand perfume at less than 50% retail value, an and adorable one of a kind Garfield hand puppet from England and even the current car I am driving for $1,500 less than its blue book value.

www.livescience.com
Science delivered in a sort of and tabloid and interactive format with lots of pictures and makes learning about complex issue not only easy, but fun. They have lots of "Top Ten" lists and you can even vote on different segments of certain stories as to how much you like them

www.instructables.com
Learn how to make, build or prepare anything from a solar panel, halloween costumes to Thai Tea in simple step-by-step instructions with pictures or video

www.threadbangers.com
Videos and step-by-step instructions to recycle your old clothing into something new.

http://sewing.about.com/
As easy to understand site to learn all about sewing and many "how-to" segments and instructions for several simple projects (including many Halloween costumes, totes, back to school projects, etc.) that are simple enough even for young teens with no experience sewing to have success at.

www.hotwire.com & priceline.com
You can get great deals on hotel, car rentals and flights; only downside is to get the really great deals you need to travel during non-peak times and you don't have choice of which chain, just a range (for cars, type of car only, for hotels, a geographic range and price range).

I have rented a car on the weekend for as little at $11.95 a day and stayed at 2-3 star hotels with a continental (including freshly cooked Belgian waffles) for as little as $25.00 a night.

www.whfoods.com
Hosted by a non-profit organization with no ads. Has 130 of the world's healthiest foods, general information about storing and a "cooking school" on preparing them and tasty recipes.

1. Bloglines Beta - most sites publish an RSS feed, so I get the news and deals that I want. This online RSS reader can be accessed anywhere. The beta site has a snazzy web2.0 interface.
2. del.icio.us - mentioned before - allows me to bookmark sites and access them anywhere. Searcheable by tags when I don't remember enough about the site name.
3. Flickr - great look & feel for posting photos. I recently started doing more photography, and Flickr is a great site to show off my work and to get constructive feedback. I like it so much I paid for the pro upgrade.

GMail without a doubt. I use it for all of my email, todo lists, and as a file server. Can't live without it.

Also, Facebook, because since they've opened their API, it's helped me make some money!

del.icio.us! I keep all of my recipes there. I set my laptop on the kitchen counter and get to cooking. It's fantastic.

I've made great money on eBay.

Austin Freecycle is a great way to get rid of some things and meet some great people.

I also love the things I find on StumbleUpon. And Flickr. I could really go on and on here...:-)

thought this post is really useful. thanks!
top of mind, my favorites are
1. flickr
2. google reader
3. journey planner-essential travel info for londoners
4. xe.com-for currency conversion
5. accuradio

Bloglines is my go-to place to keep up to date in the world. I started off using Google Reader, but the Bloglines mobile interface blows GReader out of the water.

LibraryThing is one of my absolute favorite sites (particularly as a librarian-in-training). It's just a great place to socialize with other readers, and keep track of what you have and what you're reading.

Along the same lines, WorldCat has become my first stop when looking to pick up a book. It's a worldwide network of library catalogs (heavy on the college side, I admit). My university is listed there, but I know if the book I'm looking into isn't listed, I can probably still get it through interlibrary loan.

A new favorite for me is BookMooch, a trading site for books. Enter books you'd like to send off to new homes into the system, and look for some that you're interested in yourself. For every 10 books, you earn a point. In country books cost 1 point to mooch; to get a book from abroad costs a bit more. You pay for shipping - which, by mediamail, still is reasonably inexpensive.
It's very much the idea of someone's trash is someone else's treasure. Books have equal weighting, no matter how many people want it or have it (a fact I personally like). I've gotten some near-new books (hardcover even) from the site, and have helped ease some of the load off my bookshelves! I haven't delved into the social aspects as much myself, but it's so far been a very positive experience.

I couldn't live without the following free web services:

1. Yahoo email - That's where I send and receive my personal emails and check stock prices.
2. Google - They have the best search engine hands down
3. Facebook - Much better than Myspace in my opinion
4. ESPN.com - I need my daily sports news
5. Fidelity Yodlee Account Aggregator - I combine all of my accounts using Fidelity's Full View function and depend on it to track my assets and investments. Not sure if I should consider this one free though..

-Raymond

I'm a resume writer, so I'm at my computer more hours than I'd like to mention. I use IE, and have 20 or so links across the top of my browser.

Acronym Finder - Use it all the time to decipher the toughest of jargon on resumes. (Especially from you tech types, you know who you are!)
Anywho - All-purpose phone number looker-upper. Miss a call? See who it was!
ATT - To pay my bill or see if a certain cell number is free to call from my cell phone. I've maintained the cheapest cell phone rate available by doing this and using my VoIP, even though I'm on the phone constantly.
Craigslist - Love it. Advertize my biz on it, sell stuff I don't want on it, find barters on it. Love it. By FAR one of the funniest sections to look at from my phone at stop lights? Best-of-Craigslist. People are so funny.
Dictionary.com - I use the Thesaurus mostly, and often.
Gmail - Love it. Haven't tried Google Reader though, I will.
IMDb - Because I can never remember what other shows that guy was in... the guy with the mustache... drives me crazy.
LinkedIn - Business networking.
MapQuest - To find out where I'm going. I actually prefer Google Earth (want to know where the closest bank is to your destination? Voila! So cool!) but it takes up too much bandwidth if I've got six other windows open. I can't be bogged down man!
Netflix - I watch stuff online, reorder my queue, etc.
PayPal - Send and receive payments. I'd love to hear if people like something better though. They take a big chunk out when customers pay me. Hate that!
Warm 106.9 - Great contests. I check every day to see if I'm a winner. Go me! I won $500 worth of paint once. Only problem was that I lived in an apartment at the time. I've won all sorts of stuff. I listen online sometimes. That Delilah though, she must secretly be psycho. Ya know?
Wikipedia - I am constantly looking stuff up that comes up in conversation. Especially with my 16 year old who often likes to think he's smarter than me. (And IS just a TAD too often!)
Wisebread - Yep, it's up there! You're thrilled right?
You Tube - Mindless entertainment if I have a free moment. Or if I need to know whose head has been chopped off recently. Little things like that. I couldn’t actually watch that though, could you? Eeesh.

Also appreciated but not active enough to get a spot on the browser:

Safeway - For $4.95, I don't have to slog down aisles for an hour in search of eggs and seedless grapes? Count me in! They bring the stuff right to my kitchen counter. What a country!
ABC/CBS/NBC (I'm not HREF'ing them - they want to fix their darn players, I'll fix my HREF'ing) - I holler at the video for being so darned temperamental (I do SO have an updated JavaScript dammit!) But when I can get it to work, I watch a few shows. Love the Betty!
KOMOTV.com / SeattleTimes.com - I actually go to both of these every day to catch up on news. Maybe I'll squeeze them in.

Cheers!

Jill

no one else loves WEBSHOTS?! love those free photo screensavers, can stare at them for hours, there are so many really beautiful shots.

www.netives.com >> marbles! The game that keeps me focussed during conference calls.

www.dictionary.com >> clearing one more thing off my desk

www.whfoods.com >> gotta get the best nutrients for my grocery dollars

I can't live without Wordpress because of my blogs. I've used other blogging platforms, but Wordpress is the one that I love.

Then there's Pandora. I listen to it every weekday while I'm working. There were a few times where they were having technical difficulties and I was lost.

Besides the usual google and such:

onelook.com/reverse-dictionary.shtml Know the concept but can't think of the word? Very handy

hungrybrowser.com/phaedrus Finder of Lost Recipes. Strange and cool site

magazinepricesearch.com Never never pay full price

http//forums.gardenweb.com Not just how to grow stuff, but lots of other topics and specific advice for your area, to help feed yourself and save money.

nal.usda.gov US Dept of Agriculture nutrient database. Detailed list of nutrients in almost any food.

Videomap is a great web service that show the best places of the world in video on Google Maps.
Videomap produce:

Travel Video on Google Earth

Video Mapplet for Google Maps

Video Rss

Travel Video for your Blog