Cashing in on Web 2.0

Mashable lists 19 sites that pay users for participation, with many others listed in comments.  Will these business models lead to better content or a rash of clutter?  We’re still not talking about big money for users here, at least along the lines of becoming a SL millionaire.

I think the lure of compensation for participation will be irresistible to the masses.  For better or worse.  The CGM backlash seems closer than ever.