Just checked Google Webmaster tools for one of my sites that I built 20 web 2.0s to. I did a site:web2.com search and they all showed up. However, GWT only picked up one of these in the "links to my site" section. Does this mean that I need to send more links/social signals/etc to these web 2.0s to get Google to recognize them and me see SERP movement? Or is it showing up in a site:web2.com search enough for me to see the full benefit I'd be getting from them?