InviteForGood is a social event planner that links social events to charitable organizations so that guests can donate while responding to an invitation. InviteForGood is familiar to those of us who have ever worked with online gift-registries for weddings, except that, here, the registry allows guests to donate to selected charities instead of purchasing gifts. This provides users with the ability to share the charities they are enthusiastic about with their friends. The hope is that, after having exposed others to charities users care about, people will be more likely to donate in the future and begin a life of charitable giving.
The website keeps users informed of when and who has pledged donations to the selected charities and provides users with the ability to quickly send out "thank you" letters.
Although the website includes certain preloaded charities, such as Doctors without Borders, the Red Cross, and the Books for Kids Foundation, users can also add their own charities that are not preloaded. There is no fee for using the website and the website does not take any part of the donation for its own operating costs; it appears that InviteForGood is a purely charitable.
Bottom-line: InviteForGood could be a great way to share your enthusiasm for particular issues while encouraging friends to participate.