Spammers Use Blogger
I have to temporarily block blogspot.com URLs because Blogger sites have begun spamming my trackbacks. Using a number of different sites, Blogger spam has flooded my site this morning. At first, I tried blocking the specific site URLs, but apparently Blogger has allowed a number of commercial sites to spam other bloggers. Until they fix their problem and block access to spammers, I have to keep the block on CQ. If your blog is part of the Blogger community, you may want to write Google (Blogger's owner) and tell them to clean up their act.
Here are some examples: http://pzwjynf.blogspot.com/