2 Unlimited: World of Techno: Info, story, lyrics, midi's (6 so far), mods (5 so far) and a ton of videos.
Anita Doth: Official site for the group's original lead singer includes biography, pictures, discography, videos, lyrics, chat and games.
The 2 Unlimited Hangout: MIDI and MOD files, pictures, lyrics and MP3/video list.
The2Unlimited.com: Fan site includes discography, news, and links.