Just read an excellent article (thanks Hilton Tarrant), prompting a "social networking model for business" post. I've often spoken to clients, colleagues and conferences about the "rule of thumb" in terms of community or network engagement. This could be engagement in a social network, a community content portal or an enterprise venture. It's a little Jack Walshian in it's approach, but serves to illustrate the point. * 70% just watch * 20% actually participate / create content * 10% shouldn't be there in the first place. (UPDATE: 1% hide somewhere in there. The troll race! Destructive personalities who leap on hapless participants, causing literary carnage...) While it isn't backed up with any research or scientific method, it does guide expectations in terms of participation, how to engage, who to engage, how to segment and most importantly, how important your "social kingpins" (the 20%) are for longevity. The article sites Fo