After co-founding StumbleUpon more than a decade ago, Garrett Camp served as the company’s CEO from 2001 to 2012, even while the company was under the control of eBay before being bought back by Camp’s group back in 2009. He still serves as StumbleUpon’s “Chairman” while acting as CEO for another company of his, Expa, but now that StumbleUpon has fallen on some really hard times, Camp is returning to the company in a big way in the hope that maybe things can be turned around.