Tonight I was browsing the Internet, when my virus software notified me of a potential threat from openstat.ws. None of the websites open in Firefox had a link to this site in the source. After some investigation, it appears that the potentially malicious site is called by Google Adsense.
Bye Bye DoFollow (The NoFollow Saga)
I implemented a DoFollow plugin back in August 2007 and it served me well for a couple of years, leading to an increase in traffic. However, in May 2009, the level of comment spam on this blog led to me disabling it. This is a consolidation of four posts covering that span.