gford - 6:12 pm on May 7, 2010 (gmt 0)
I have been also tracking WMT IBLs and noticed a huge spike on refresh of links today that before this was last updated for home page links April 21st. Now showing thousands of links from may 5th on back.
The # of reported links is climbing as well. If you don't download the list of links daily for you site, I recommend you do and do some trend analysis on this and also look for bad 'hoods.