StumbleUpon Launches on Windows 8

Social discovery site StumbleUpon announced a Windows 8 application on Thursday, one of a number of early Microsoft partners to launch with the revamped operating system. Among other features, users can jump from site to site from within the “Metro-style” tiles that make up the new Windows interface. In line with the company’s latest initiative to ramp up social, the StumbleUpon app increases the focus on sharing content with other friends through the Windows 8 “Charm” interface.