American Institute of Philanthropy
Guide to doing wise charity. Presents an alphabetical listing of charitable organizations, tips on donating or giving, and charity-articles.
Charity Navigator
Houses a database of more than 5000 charity ratings. With tips, study materials, articles, and donation tools.
Flattr
Online payment platform intended to facilitate small donations and the sending of small online cash gifts for blogs, online content creators, and websites to show appreciation.
Giving.org
Website of the BBB Wise Giving Alliance. Provides tips on giving, news, alerts, and links to related web pages.
Microgiving
Online fund raising site allows users to send donations for various causes or request for financial assistance through small donations.