"In June 1995, I began refdesk in an attempt to bring some semblance of order to the chaos of the Internet. Somewhere along the way, refdesk became my passion, my source of bliss. ...
Refdesk has three goals: (1) fast access, (2) intuitive and easy navigation and (3) comprehensive content, rationally indexed. The prevailing philosophy here is: simplicity. 'Simplicity is the natural result of profound thought.' And, very difficult to achieve."
"Social Mention is a social media search and analysis platform that aggregates user generated content from across the universe into a single stream of information.
It allows you to easily track and measure what people are saying about you, your company, a new product, or any topic across the web's social media landscape in real-time. Social Mention monitors 100+ social media properties directly including: Twitter, Facebook, FriendFeed, YouTube, Digg, Google etc."
"Organize, share, and discover research papers! Mendeley is a research management tool for desktop & web. You can also explore research trends and connect to other academics in your discipline.
Mendeley is used at, and endorsed by, some of the world's leading research institutions. Based in London, we are funded by some of the people behind Skype, Last.fm, and Warner Music."