"The young, highly active user base, revenue history, presence in countries throughout the world and solid technical infrastructure make it an attractive media platform both as a stand-alone entity and in the context of our broader investment objectives," Criterion managing partner Adam Levin said in a statement. Now you can 'Like' Facebook comments Facebook's ubiquitous 'Like' button has a new use: Members of the Palo Alto social-networking upstart's site can use it to give a thumbs up to comments. Facebook's 'Like' button and the ability to comment on News Feed items are "two of the most heavily used features on the site and have proven to be a simple way to discuss posts and show appreciation for the content friends share on Facebook," software engineer Tom Whitnah wrote yesterday on Facebook's official blog. "So like peanut butter and jelly, we realized these two features would go better together." Facebook is rolling out the new feature gradually, so not all members will see it right away.