OnLive's cloud-based video compression technology has revolutionized the way video games are played, both in the home and on mobile devices, as a user's computer or device becomes nothing more than a means for display and input.

ENGADGET: OnLive and Juniper team up on cloud-based services for enterprise

But Facebook says it still places a cookie on the computer of anyone who visits the Facebook.com home page, even if the user isn't a member.

WSJ: 'Like' Button Follows Web Users