Gigya makes websites social by integrating online businesses with the most popular social networks and implementing powerful social plugins into a single, comprehensive solution.
LinkedIn Plugins are a way to drop LinkedIn functionality into websites.
Open graph description entity tag
A web page. Every web page is implicitly assumed to be declared to be of type WebPage, so the various properties about that webpage, such as breadcrumb may be used. We recommend explicit declaration if these properties are specified, but if they are found outside of an itemscope, they will be assumed to be about the page