Submission + - StumbleUpon makes its first acquisition by buying a video discovery service (mashable.com)
DaJoky writes: Content discovery service StumbleUpon is announcing that it has acquired 5by, a video startup based in Montreal. This is StumbleUpon's first acquisition since the web discovery company was founded in 2001. 5by launched earlier this year and describes itself as a "video concierge" and recommends online videos, based on the category you’ve selected and on your actions while using the service.