January 31, 2011: The 2010 Rankings are now available.

December 15, 2011: Eigenfactor Recommends (Beta). This is for the field of computer science using Microsoft Academic Search data.

October 10, 2011: New Cost Effectiveness Rankings

September 20, 2011: Data query speed upgrade.

September 19, 2011: New Advanced Search

September 16, 2011: New Motion charts

September 14, 2011: Article about Eigenfactor in the Chronicle of Higher Education

September 12, 2011: We are in the process of a major database update. We are also adding a bunch of new features and tools. The site will have limited features available for the next week as we complete this major upgrade. Thank you for your patience. We will be back to full functionality in the next couple weeks.