http://developers.facebook.com/tools/debug/og/object?q=goin.gr
http://inwebdeveloper.com/2012/02/06/php-get-title-and-meta-tags/
http://webhole.net/2010/02/21/how-to-extract-meta-data-from-a-page/
http://stackoverflow.com/questions/2962863/facebook-like-on-demand-meta-content-scraper




