MFI Connect: www.mficonnect.org
CGAP is a consortium of 33 public and private development agencies working together to expand access to financial services for the poor in developing countries.
CGAP publishes many papers on microfinance which are available for download at this site.
The Microfinance Gateway: http://www.microfinancegateway.org/p/site/m/
The Microfinance Gateway is managed by CGAP and is a comprehensive source of information for and about the microfinance industry including research and publications, discussion groups, specialized resource centers, organization and consultant profiles, and the latest news, events, and job opportunities in microfinance.
Mix Market: http://www.mixmarket.org/
The MIX intends to address one of the key challenges of the microfinance industry: the lack of reliable, comparable and publicly available information on the financial strength and performance of Microfinance Institutions (MFIs), which underpins the development of the market for microfinance services.
This is a great place to get more information about specific microfinance institutions.
The Microcredit Summit Campaign is a project of RESULTS Educational Fund, and was launched to reach 100 million of the world's poorest families with credit for self-employment and other financial and business services by the year 2005.
The Campaign publishes an annual report "The State of the Microcredit Summit Campaign" which documents their progress towards achieving this goal.