HandUp Gift Cards - Give directly to a homeless neighbor on the street
Donorhut - Donorhut offers cloud fundraising software for charities and non-profits of any size.
Catchafire - Use your professional skills to help charities
Txt2Give - Txt2Give helps churches, non-profits, schools, alumni associations, and political campaigns receive donations with text messages.
TAP London - Tackling the homeless problem together
Little Green Light - Illuminating Data. Advancing Nonprofits.