The internet wouldn't be the same without Caterina Fake. In 2004, she launched Flickr, one of the largest photo hosting and sharing sites. Later, she co-founded Hunch, which aims to personalize the web through recommendations and a massive Taste Graph. Caterina is also Chairman of the Board at Etsy, on the board of Creative Commons, and an active angel investor. (She's invested in Etsy, Kickstarter, TypeKit, and 20x200, to name a few.) Her most recent venture is Findery, a location-based app that encourages people to leave notes all around the world. (Findery is in private beta, but Lifehacker readers can skip the queue here!) Being dedicated to this many projects has taught Caterina more than a few productivity tricks, from the fastest way to get through email to the best workspace for creativity. More »