I have started to receive a lot of comment spam. You don’t see the spam because I have comments setup to require moderation. It has taken me some time to determine why the spam just started. I have been using the free Akismet plugin to block spam and it worked great. However, Akismet decided this blog was a commercial venture because of the ads and decided I had to pay for their commercial service. I use ads more out of curiosity than anything else and the cost for one month of the Akismet service would cost more than this site generates in ad revenue in a year. I have turned off comments as a solution.