Apparently this blog is now officially spam-worthy. Not only that, it was spammed in a foreign language (Chinese characters, I think). Since this blog is not a democracy, I have already deleted the offending comment. If you want to advertise here, pay Google like everyone else.
I'm not going to post a long, impassioned plea for spam-free comments, since I imagine there is almost no overlap between the people likely to spam this blog and the people who actually read it. I'll just say I hope it doesn't get to the point where I have to start moderating the comments.
Actually, I'm more amused than anything. I can't imagine that this site gets enough traffic to drive a lot of revenue for the offending sites. Also, I assume that all you readers are far too intelligent to click on that sort of thing, yes? ;-)