One of the very finest things in Net is when you like a lot asite and want to share a page with your buddies in your social networks. Like it’s known, the most powerful social media network is Facebook, with over 845 million users, so , millions of pages are shared in Facebook in a daily basis. One of the last features that Facebook added, was the possibility that we've not solely to share a link, but a meta description and a photo from that web. It helps SEO a lot.