Google+ platform websites integration using the Google+ platform tag.
Facebook Connect allow users to connect their Facebook identity, friends and, privacy to any website. Facebook Connect is Facebook's first attempt to allow access to Facebook user data outside of Facebook itself. The company is describing it as giving third party applications access to much of the same data as Facebook applicat...
Open graph description entity tag
This page contains a meta robots tag which tells search engines and robots to index or not index the page.