Thomson Reuters recently announced an enhanced release of  Journal Citation Reports.

Journal Citation Reports now includes:

• Five-Year Impact Factor - provides a broader range of citation activity for a more informative snapshot over time.
• Journal “Self Citations” – An analysis of journal self citations and their contribution to the Journal Impact Factor calculation.
• Graphic Displays of Impact Factor “Box Plots” - A graphic interpretation of how a journal ranks in different categories.
• Rank-in-Category Tables for Journals Covering Multiple Disciplines – Allows a journal to be seen in the context of multiple categories at a glance rather than only a single one.