Here are some good sites to find others interested in studying Japanese

• Crisscross Friends
• e-Japanese Language Exchange
• J-Girls
• Japanese is nihongo
• Japanese Language Meetup
• Japanese Penpals
• JapaneseLearning.com Friends
• JIP Friends Club
• Kanjistep.com Mail Friend
• MyLanguageExchange.com
• Sharese.com
• The MIXXER
• Tokyo Friends Club
• VibeJapan Friend Finder
• World Friend Network - Japan

Living in Japan - Search for goods, jobs, etc. online...

• Nihon Classifieds
• WhyNotJAPAN.com

Here are some sites with discussion forums

• About.com Japanese Language Forums
• Expat Forum
• Japan Forum
• Japanese-online Forum
• The Japanese Page Forum
• WhyNotJAPAN.com

Here are some blogs about Japan or Japanese

• Nihongojouzu
• 3Yen
• Alive in Kyoto
• Chipple.net
• Japan Newbie
• Japanese for Life
• Japanese News in Translation
• Japanese! Japanese!
• Jonathon Delacour the heart of things
• Naruhodo!
• shambolic jigsaw - a japan fan in london
• Stippy
• 世論 What Japan Thinks
• 日本語 a go-go

Here are some sites with discussion forums

Here are some sites about Japan or Japanese for those who speak something other than English

• YUKO-FORUM Japanisch-Forum (a German board about Japanese language learning)