It’s one thing for semantic and identity layers to emerge on the web, but it’s something else entirely for the all of the interactions on those layers to be piped through a single provider
"Understanding the Open Graph Protocol", factoryjoe.com, 23 April 2010
The problem with OpenLike is that Virginia has never heard of hunch, digg, reddit, or stumbleupon. But I bet you she's on Facebook before her 101st birthday.