Union of International Associations -  .

BBB Wise Giving Alliance - - Reports on nationally soliciting charitable organizations (USA) that are the subject of donor inquiries. These reports include an evaluation of the subject charity in relation to the voluntary BBB charity standards.

CreateHope - - Helps donors to decide which charity to give to by providing information about thousands of charities, and then lets them donate online quickly and conveniently.

DonationDepot.com - - Offering online services that make researching charities, finding volunteer opportunities, and donating easy, safe and fun.

Give For Change - - Find nonprofit groups working for social change. Hundreds of groups to choose from and provides a secure environment to donate to nonprofit groups online.

GuideStar - - Free service with information on the programs and finances of more than 600,000 American charities and nonprofit organizations.

Idealist and Action Without Borders - - Over 23,000 nonprofit and community organizations in 153 countries, which you can search or browse by name, location or mission.

Index of International Organizations - - Maintained by Northwestern University Library. Mostly governmental organizations.

International Organization / NGO Web Sites - - Links to WWW, gopher and FTP sites of international NGOs and IGOs.

International Organizations - - List of links to world and regional organizations, classified according to area of interest.

MaNGO (Macedonian NGO) - - NGO and foundation web directory for Macedonia.

Nonprofit Internet Resources - - Hundreds of web sites, online directories and useful sources of information for and about nonprofit organizations.

Oneworld.net - - An internet community of 978 organisations leading the way for human rights and sustainable development worldwide.

Political Advocacy Organizations - - Advocacy Organizations listed by subject and alphabetical order, with brief descriptions.

Scholarly Societies Project - - Facilitating access to information about scholarly societies across the world.

The Scholarly Societies Project - - Directory of scholarly societies across the world.