Care2: A site where you can make petitions, sign them, learn about current happenings, help the planet, contribute with butterfly points to help a cause, and much more. Advised for rising activists and eco-people.
Facebook: I sure hope you know what this is.
Gmail: Google email program. Fast, easy, and lots of users. This is what I use.
Hulu: Video site where you can watch your favorite TV shows for free!
Iconator: Cute little pictures and icons for all your decorating needs :)
MLIA: Average yet funny stories written by average people on your average "just for laughs" website. Written for average people like you.
Playlist.com: Build your own playlist with all your favorite songs. Easy and free to use.
Puricute: Cute, kawaii photo-editing site. Warning: VERY Asian
Swaptree: A place to swap your old, unwanted, but still usable games, music, movies, and books. You only have to pay shipping!
TinierMe: Another Asian site with manga/anime-style characters in a virtual world. Games, chat, virtual pets, and trading included.
Yola: Site for free web-designing. Good features considering the cost - 0!