Most of the time I spent on my blog during the last weeks has been spent removing comment spam. I thought that removing comment spam manually wouldn’t take up that much time but I was wrong. One argument against implementing an automatized solution to this problem was that they often block IP addresses or even ranges of IP addresses. This wouldn’t have been a good solution, since blocking these address ranges would keep other, legitimate users from accessing my blog. After being frustrated by another wave of comment spam I did some more research and found a modified comment plug-in for my blog software (blosxom). This plug-in is based on a keyword blacklist, which is regularly updated. It sounds good and I really hope that it helps keep the comments in this blog spam-free without requiring too much maintenance effort.