Welcome to WebmasterWorld Guest from 220.127.116.11
joined:Mar 20, 2009
joined:Jan 30, 2002
Have you had a look at Webmasterworld's social media tagging and bookmarking [webmasterworld.com] & community building and social networks [webmasterworld.com] forums?
They should give you a good idea of how other people are utilising traffic in the way you want to.
Las Vegas 2016