It offers tools to help your organisation reach more people, and turn your donors into fundraisers. Firstgiving deals with the money side of things for you and makes administration easy. And its FREE for your organisation to use - or you can pay for a Branded Premium Account.
Take a look at FirstGiving here
And have a look at the FirstGiving Blog entry "Share the wealth of fundraising ideas"
"Nonprofit organizations who refer other nonprofit organizations to us can earn three months of free Firstgiving service for each referral who joins for six months or raises at least $5,000. So share the wealth and tell your peers about Firstgiving."