Anime News Network, keep track of new Anime series,and reviews.
Anime Pitstop Directory of anime related websites
Anime Web Turnpike: Largest directory of anime related websites in the internet.
Bunny's Tour Through the Silver Millenium: Excellent Information Site as a result of six years of experience.
Dies Guada, excellent references to Japanese language, excellent exposure of misinformations and their corrections, analyzes and discussions of various topics, and how the Japanese names for SM characters are used.
      HIGHLY RECOMMANDED!
Gallery of Anime & Manga Fanarts Large gallery of anime/manga fanarts (regardless
of drawing quality)
Manga of Naoko Takeuchi Collection of any mangas done by Naoko T. and
translated by the owner.
Prose N Poetry-A community where people of any age can join. Also a good place to submit your fanfics, and learn to write stories.
Sailor Moon Encyclopedia by Hitoshi Doi-Great source of info on the original 
Japanese Sailor Moon epsiodes.
SailorMoonFanfics.com An large archive of fanfictions, and already passed its 2nd annivarasy.
Sailor Moon Romance Said to be contain the largest collection of fanfiction stories on internet.
Sailor Search: Gook link site, links to many other Sailor Moon sites.
Sailor Moon Uncensored : Source of info on the differences between original 
Japanese episodes and dubs. Opinions, editorials also included.
Sailor Senshi Page: Best Info site I have been to. Lot of info, and has a long list of rumors that were proven to be false.
Worst Sailor Moon Page Ever: Website Reviews, Topic Discussions, Website
Building Tutorials, etc.
www.amazon.com, where you can buy currently released Sailor Moon stuffs like books, videos, mangas, toys, etc.
www.ebay.com, I consider this auction website the best source of Sailor Moon merchandises.