The library is now able to make access to ISI's powerful Journal Citation Reports available to all current UMass faculty, staff, and students. To access JCR, just visit the library's homepage, choose Databases, navigate to J, and click Journal Citation Reports.
JCR provides crucial information about journal titles indexed by ISI: impact factor (the average number of times articles from the journal published in the past two years have been cited in the JCR year); immediacy index (the average number of times an article is cited in the year it is published); cited half-life (the median age of the articles that were cited in the JCR year), and more.
It's also possible to generate lists of the journals in a particular discipline that have the highest impact factors, immediacy indexes, etc. (In fact, I'm spending my evening at the ref. desk reviewing the library's holdings for the highest-impact journals in each of my liaison departments. So far, we're doing pretty well!)
If you have any questions at all about using JCR or any other library resource, feel free to contact me.