NetRatings reported that traffic to image hosting Web sites has skyrocketed due to the massive rise in blogging activity seen since the beginning of 2005. As a category, image hosting sites have grown 406% to more than 14.7 mln unique users since January 2005, accounting for nearly 10% of active US Internet users. The top referring sites for the top five image hosting sites during August 2005 included MySpace.com, Xanga.com, LiveJournal, Blogger and MSN Spaces. In July 2005, Nielsen//NetRatings reported that 20% of active Web users, or 29.3 mln people, accessed blogging or blog-related Web sites, growing 31% since the beginning of 2005.