Google recently introduced a new add-on to search results called +1. It’s not groundbreaking but it’s relevant and it’s not complicated but it’s too simple. Google +1 has its problems.
The problem with Google +1 is the entire implementation. Search and social have had an odd relationship: sometimes it works and other times it doesn’t. This is one of the cases where Google’s treading the social waters with a tool that’s useful for a small subset of users.