Show your Concern
Concern Worldwide is a leading international humanitarian organization dedicated to tackling poverty and suffering in the world’s poorest countries. The Show your Concern project is just one of many online fundraising projects that Concern runs. The website enables members of the public to register for events that are organized by Concern. They are provided with their own personal online fundraising pages, enabling them to simply and securely collect sponsorship money through the site, on behalf of Concern.
Events can be anything from trekking across Nepal, to climbing Mt Kilimanjaro, to taking part in a triathlon! As well as all of the incredible events that Concern organizes, users of the site can even set up their own events and use the site as a fundraising portal for these.
Complete Showcase: http://drupal.org/node/1708372