Flickr is an image hosting and video hosting website and web services platform.

Reddit is an social news aggregation, web content rating, and discussion website.

Turtl lets you take notes, bookmark websites, and store documents for sensitive projects. From sharing passwords with your coworkers to tracking research on a…

Tumblr is a microblogging and social networking website.

MusicBrainz is a project that aims to create an open data music database that is similar to the freedb project.