12/14/07

Added a frequently asked questions page.

9/18/07

Restored cost effectiveness search (now with open access journals separated out).

8/24/07

Major upgrade: mapping, Eigenfactor category system, etc.

4/16/07

Added cost-effectiveness search tool.

4/10/07

Revised page navigation by adding drop down menu.

3/23/07

Added some new statistics found here.

3/19/07

EigenFactor.org is officially released!

3/16/07

Revised methods page and search results page. Changed default search sort to Article Influence. Added statistics generated from the data.

3/13/07

Full dataset is posted and searchable. Added additional description to journal detail popup window. Added search time to quantify speed of query. Updated top 10 lists. Added a quick link to the advanced search page.

3/5/07

Revised search navigation.

3/1/07

Added revised Science and Social Science journal data and revised search results to give it a cleaner look and added "active" sorting columns.

2/20/07

Revised search page and journal detail page.

2/18/07

Revised Methods page to include more technical details.

2/12/07

Revised "Why Eigenfactor" page.

2/5/07

Revised fine category search function to fix a bug in the code.

2/1/07

Added science journals to searchable database and fine category searching! Note: listed percentiles are for science or social science only.

1/30/07

Added non-ISI journals (rankings only) to searchable database. Updated search results page to include multi-page results.

1/26/07

Added basic description and figures to the methods page; updated top 20 list.

1/25/07

Search results page displays percentile bars to indicate each journal's rank.

1/22/07

Search by category is activated.

1/19/07

The preview version of Eigenfactor.org Launches!