The Foundation Centerprovides information about every foundation in the country. Much of this information is free, but some of it is for paying subscribers.
Guidestar lists financial information for 800,000 nonprofits. You can use Guidestar for research and you can also update your organization’s entry.
Idealist has built the leading nonprofit job site in the country. In addition to jobs, you can also list events, volunteer opportunities and internships and at Consultants, you can find the most comprehensive directory of nonprofit consultants on the Web.
Michael Gilbertmaintains a great site with daily news updates bridging the online and nonprofit worlds. You can read the news there, or you can subscribe for weekly e-mail updates.
Putnam Barber maintains the Nonprofit FAQ — an older resource center that is special because it is based on actual questions and answers posted by nonprofit managers over the years.
Network for Goodis where you can find opportunities for volunteering and making donations to hundreds of thousands of nonprofits. Most importantly, you can use this site to add a free Donate button to your Web-site.
Service Leader is a huge site covering every aspect of volunteer management, from screening, matching, reco9rd-keeping and evaluation, to legal issues, risk management and virtual volunteering.
Techsouphas built the leading resource center for all issues related to nonprofit technology. In addition, they offer steep discounts on software for nonprofits, sometimes up to 90% off the list price.
Volunteer Matchcan find volunteer opportunities all over the country by ZIP code or area of Interest.