Amazon.com
I'm afraid I add things to my wish list more often than I order things. But I do look forward to having enough money someday to really whittle that sucker down. Anyway, I don't suppose I have to tell you this is a great site for buying things like books, DVDs, CDs, mp3s and such; though perhaps it's less common to think about the fact that you can also buy all sorts of merchandise, food, etc. Things you may have trouble finding elsewhere, especially imported stuff, like say imported Japanese candy, for example. (I don't think I've bought such things from Amazon yet, but someday I'm sure I will.) It's also a good site for buying stuff from third party sellers, often very cheap.

Angelfire
This, obviously, is the provider of my website, which you're looking at right now. (My site was originally on GeoCities, but in 2000 somehow I lost access to it, so I moved to Angelfire, and have of course added and improved a great deal in the year since then. "Absolutely Pointless" is still fairly simple, by design, but I like it. I'm sure you could make a much more sophisticated site on Angelfire, with the proper skills and effort.)

Ask A Ninja
Hilarious little short videos of a guy dressed as a ninja answering viewer letters. I'm not sure if the letters are real or not, but it doesn't matter, the answers are ridiculous and terribly funny. Plus the show has a really catchy theme, part of the song "I M Ninja" by The Neu Tickles.

ComingSoon.net
Has plenty of info on TV, movies, and DVDs, though I mainly just use it as reference when working on my site's calendar.

DVD Aficionado
Here I keep a list of DVDs I own. Also a wish list, which is way frickin' longer than the owned list, alas.

Everything2
Kind of like Wikipedia (see below), but not nearly as cool. (It doesn't even have pictures!) Still, it's not bad, either. Although it's often very slow-loading. But not always.

facebook
Yes, you know the site. For social networking, playing games like Farmville (or a million others, but I don't do that so much). I dunno, this site kind of replaced MySpace (which is now used more by musicians and such than by regular folks). Maybe someday facebook will be replaced (probably by Google+), but for now this is the place to be.

the futon critic
Has plenty of info on TV stuff, though I mainly use it as reference when working on my site's calendar.

Google
Best search engine ever. So far. I dunno, plenty of other search engines have been the best search engine ever, and they're all still good. But this one has held onto the top spot longer, it seems. And it's simpler, which is nice. And it has cool logos for special occasions. It also works better as a verb than any of the other engines do. Plus, it offers Gmail. I know, all the major search engines offer email. But Gmail is zeitgeistier, okay? Just like the search engine itself....

The Guild
Best. Webseries. Ever.

The Hollywood Stock Exchange
A really fun game trading fake stocks, bonds, and such, in movies and movie stars.

Hulu
Great for watching shows online, like if you miss an episode or if you don't have the channel a show's on, on your TV. Or you can watch movies, too, but I haven't done that yet.

The Internet Movie Database
One of the most useful reference sites on the Internet, for info on movies, TV, cast and crew, etc. I've submitted a little data, occasionally.

Neopets
Take care of the cute critters of your choice, lots to choose from. Plus play any of countless other games to earn neopoints, to pay for the stuff you need to take care of your pets.

Nihongo: Japanese Language
Very useful if you're interested in translating English words into Japanese, and vice versa. Though unfortunately the site sometimes fails to work for some reason, when it is working it's pretty good.

Photobucket
Just a good place to store pics for free, and possibly use them for remote loading on other sites.

Retro Junk
Great site with pages for lots of TV shows, movies, and commercials from the 70s, 80s, and 90s, often with opening or closing themes for shows, or trailers for movies.

Things From Another World
A great site for ordering, like, comic books or anything comics-related. If for some reason you can't get it at your LCS (or if you live nowhere near a comic shop).

Things my girlfriend and I have argued about
One of the funniest things on the Internet, written by British columnist Mil Millington. If you don't read this, you... won't know what you're missing, and I think that's just really, really sad. I don't think it's updated anymore, so I don't look at it anymore, but it's still one of the best things ever.

TV.com
One of the most massively useful reference sites for info on TV shows, cast, crew, etc. This used to be "TV Tome," which I definitely preferred over TV.com at first, but I've gotten used to the new site. (Though it continues to change its style occasionally.)

TV Tropes
A wiki which prides itself on being more fun-loving than Wikipedia. It was originally for TV shows, but now includes movies, books, comics, etc. The number of tropes this site has catalogued is truly staggering. Definitely a fun and useful tool for getting to know various entertainments better, and seeing how they compare to every other entertainment ever. Or something like that. It can also provide some knowledge about specific people (writers, actors, etc.) or about more serious subjects. (It has perhaps the best explanation of Asperger's Syndrome I've ever seen.)

Urban Dictionary
I don't use this often, but still I think it's an awesome thing to have access to, any random time you might want to know what a slang word or phrase means...

Wikia
A great site to get your own wiki, or just to explore other wikis on countless subjects. You might check out mine, The Landian Chronicles Wiki.

Wikipedia
Best encyclopedia on the Internet, and ever-expanding. Massively useful and cool. I occasionally contribute a bit, start a stub page if there isn't anything on a person or subject I think should be there, or make minor edits to existing pages, mostly adding external links. Check out my user page.

Yahoo! Babel Fish
If you've been around the Net long enough, you probably recall this was originally on a different search engine, Alta Vista. But whatever, it's on Yahoo! now. I don't use it often, but it's nice to know it's there.