Wakoopa tracks what kind of software or games you use, and lets you create your own software profile.

TasteKid is a recommendation system enabling users discover and share interests in music, movies, TV shows, books, authors and games.

Kitsu is a content discovery platform that helps anime and manga fans track, share and discover.

Flavorit is a restaurant discovery platform.

Open Source Software Directory lists many open source and free softwares.

Listal is a community based on listing, rating and reviewing entertainment products.

openMarkers is a community-based map marker.