CiviCRM Community Forums (archive)

I'm just updating the marketing materials for CiviCRM with a focus on CiviContribute. I'd love examples of sites that are doing interesting things with CiviContribute in terms of design, features (eg recurring, pledges, PCP, widgets, or other integrations), customizations, integration with broader campaigns, high-profile organizations using it, organizations that have raised a lot of money with it, etc.