AnimeWallpapers.com has one of the largest selections of anime wallpapers!
AnimeNation is the best source if you're looking for anime DVDs, T-shirts, manga, CDs, and other stuff to buy
Lelola is one of the best anime sites and the one that inspired me to create Anime Yume ^^ It always has up-to-date news and it covers lots of anime and has tons of images, info, fun, humor, and other great stuff!
Anime Cubed has one of the largest collections of anime images
AnimeLyrics.com is the ultimate source for anime lyrics and song translations
Anime News Network is the best and most trusted anime news site!
Cartoon Passion
Cartoon Passion is great site for purchasing those "hard-to-find" imported anime products. They've got Japanese DVDs, video games, key chains, toys, wall scrolls, and tons more!
As the name implies, Online Ghibli has lots of images and info on all of the great Studio Ghibli films!
The image galleries of Anime Project Alliance have tons of huge, beautifully scanned exclusive Japanese magazine covers, pages, books, etc., from many different animes!
Anime Galleries is one of the best source for all kinds of anime images and screencaps!
My friend Dennis' anime blog that has lots of up-to-date anime/Japanese entertainment news and images. I'm also a staff member on Moetron and occasionally make posts as well ^_^
All Anime.org has great online games, downloads, news, links and other good stuff
A very nice anime review and information site
Best Anime
Best Anime has an incredible database of information and goodies from over a thousand animes! =)
Anime-Nano
Anime Nano collects some of the best anime blogs sites and lists their most recent posts. My blog, Mainichi Anime Yume, is also part of it =)
Anime Shinobi
Great site with lots of anime images and media
Anime 2 Manga
A fairly new, but informative anime and manga blog review site. They're also currently recruiting staff members, and will be giving away free webhosting to staff plus username@anime2manga.com and username@amexd.com email addresses. The authors who will post articles at Anime 2 Manga will also get full credit
for their articles and they can somehow use their articles to promote
their websites, since the articles posted by the staff will be
published along with their profile where they can place links to their
websites. So if you're interested in anime blogging, definitely check them out! ^^
A well-organized site with a lot of anime episode summaries and other info
Anime-Paper.net
Anime-Paper has an incredible collection of large, high-resolution, hard to find scans and wallpapers from a vast variety of anime. Unfortunately you have to contribute to their site (such as donate money, submit your own scans, etc.,) in order to download the full scans off their site. But if you're really into it, then I guess it's well worth it =)
Pacific State
A nice blog site with great anime art images and vectors