StumbleUpon broke away from eBay a little over a year ago, and went back out on its own. The company has shared an interesting list of stats about StumbleUpon use since then. "Since then, we've released the web bar as well as a new version of the flagship Mozilla add-on, our content syndication service su.pr, a Chrome extension thats one of the top 20 third-party extensions out there, a revamped ads system and new look to our site, an iPad app, new badges, and much more,