From Katya’s Non-Profit Marketing Blog:
Crowdsourced Philanthropy: Check out Givkwik to see an emerging version of this at work.
Digital Action Campaigns: By “liking” an organization on Facebook you unlock a donation. See John Haydon’s post on 4 Types of Cause Marketing.
Issue Awareness Campaigns: UNICEF recently ran a campaign on their Facebook page to raise awareness for their cause by tagging people who deserved a medal for their efforts.