The list (compiled by Coupon Audit) doesn't really spell out what criteria was used in picking or ranking blogs/sites, although the number of Twitter followers and Facebook fans is included on each site. Some have neither, so maybe the rankings are determined by a combination of Twitter, Facebook and hits. Either way, there's some great stuff to be explored on the list, many of which were previously unknown to me.
Things have been pretty busy here at Graphic Novel Universe (mostly due to school), but I hope to post a couple of reviews soon. Stay tuned!