I was asked to elaborate on the sliding scale for participating in the 
Social Actions open api. 
Please let me know if I'm thinking clearly about this very sensitive issue.
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I haven't worked out the sliding scale in detail yet, but my intent is 
to reward systems that are efficient or just getting started.
Low staff, low budget, high-value operations will benefit the most from 
a sliding scale that's based on annual budget.
If Social Actions had an open API that directed people to encyclopedia 
material, then Wikipedia would have a lower membership fee than 
Encyclopedia Britanica. 
Initially, the fees will be very low, in the order of $10 / $50 / $100 
per month.  As the value of the open api is proven, then we would be in 
a position to increase the membership fee, without blocking 
participating to the lower-budget social action platforms.  Does that 
make sense to people? 
Personally, I believe the model is ethically more sound than taking a 
commission, since it doesn't attempt to "invade the donation." We're 
also dealing with a number of social action platforms that aren't 
fundraising oriented.  It would be difficult to identify the referral 
value of someone who participates in a non-fundraising action.  
I want to stay 100% true to my commitment of making the Social Actions 
open api an open / non-commercial system, in which all social action 
platforms are welcome.  I also realize that we're eventually going to 
need to pay someone to do the programming and support.  The membership 
fees would help to cover this expense.   In addition to getting included 
in the open api, each participating social action platform would have a 
profile page on Social Actions, and would be able to access Social 
Actions consultants / events / material / webinars at lower rates than 
non-members.
All the best,
Peter
I don't see Social Actions charging for search results positioning.  The 
membership fee would cover the cost of building and maintaining the open 
api. 
If all goes to plan, the Social Actions search interface will be just 
one of many ways of interacting with the data.  I anticipate that third 
party developers will produce the applications that draw most on the 
open api.
Don't you think Social Actions would lose all credibility if the 
recommended peer-to-peer social change campaigns were paid? 
We want people to find their way to the most interesting and relevant 
campaigns.  We'll rely on various recommendation engine tools, 
intelligent filtering, and human filtering to come up with top results.
Maybe I'm misunderstanding your suggestion.
All the best,
Peter