Golden Volunteer App - Golden is no ordinary community service app or volunteers app. Create Golden Moments by searching volunteer opportunities. Go from Volunteering to Volunteered.
SignUpGenius - SignUpGenius is a tool for scheduling events, sending out invitations, and managing your respondents all in one place.
HelpStay - HelpStay Exchange
Bloomerang - Bloomerang is a simple donor database and fundraising software solution that helps nonprofits decrease donor attrition and increase revenue.
Idealist - Volunteer, work, and intern job search
Volgistics - Volgistics is a volunteer management software solution, that helps to manage volunteers through the entire volunteer cycle.