This is about integrating more social platforms on a single place that is your site. It is a web toolbar that could integrate twitter, facebook and so on, very simple. This is wibiya. More of this you can find from the video clip below with Dror Ceder, CEO and co-founder wibiya:
Also, Dror Ceder is a co-founder joongel, a website for using different search engines from one place. Here he talks about it:
Dror Ceder's twitter account here.