facebook shares, google+, retweets, I understand thats a social signal. but what about when people say use syndwire for social signals. or fcs networker. soup. bitly. bitdo,. foursquire. deviantart. goodis. scoopit. stumbleupon. etc I don't understand these are social signals to? and what makes them a social signal is if you make a post on them with a hyperlink going to your money site? or when you put a hyperlink in their bio? I'm just trying to figure this out. I read people saying 'get social signals' but I don't fully understand. ty in advance.