Flattr: Social Micro Payments. Pirate Bay-guy one of founders.
flattr.com
flattr.com
http://news.ycombinator.com/item?id=627679
Obviously, Contenture got it wrong. I agree Flattr's required-clicks are wrong, too.
I only heard about Kachingle and Sprinklepenny via this thread. Kachingle's limited-info flash-intro isn't confidence-inspiring. Sprinklepenny seems to understand more of what could appeal to readers (reallocate/retract funds) and publishers (detailed reporting).
But I don't see any reference to creating a gradient to reward subscribers -- for example skipping a Salon-style interstitial -- and extra rewards for the sites that get people signed up. That's likely the key problem to solve to bootstrap a self-reinforcing cycle of site and reader enrollment.
Kachingle [2] and Sprinklepenny [3] apply pretty much the same rules that are outlined in this video - it seems a point of convergence for this type of service...
[1]: http://www.shirky.com/writings/fame_vs_fortune.html [2]: http://kachingle.com/ [3]: http://sprinklepenny.com/