Well,I have been using Facebook as social networking site.This is one of the best Social networking site.I haven't try "Pheed dot com"
But now i think i must try this .Thanks for sharing
If you want to get higher rank among SERP then you need to follow Google algorithms.Having duplicate meta tags is agianst google rules.You could be penalized by Search engine.
Unlike search engines, metacrawlers don't crawl the web themselves to build listings. Instead, they allow searches to be sent to several search engines all at once.