Feed Compare
Over at Feedster they're doing some wonderful work with blog tools. The newest is Feed Compare. Basically, compare the search of up to five blogs. Scott Johnson needed some test data and I suggested "Library Blogs".
You can make your own. Find the Feedster number for the blogs you want to track and paste then in the url. For example: templeofme is 64080 and BlogVerse is 49885. So you get:
http://feedster.com/compare.php?id1=64080&id2=49885&trange=604800
The compare script can take up to five "id#" and the trange is the amount of time you want to compare. 604800 is one week (in seconds).



