The Walker Library has a trial underway until 4/24/2009 to ISI Journal Citation Reports. This important resource provides information on journal Total Cites, Impact Factor, Immediacy Index, Ariticles, and Cited Half-life for over 6,600 journals in the science and social sciences.
The trial contains 2003 data; 2007 data is now available with a subscription. The newer version also now includes the Eigen factor and a 5-year impact factor.
Please check it out and let us know what you think.