The Gates of Vienna blog, one of El Jefe's favorite spots on the blogosphere, was evidently blocked for a time, apparently by Blogger software. During the blockage, Baron B. and Dymphna, the proprietors of Gates of Vienna were unable to post, the software telling them that their posts were being blocked by Blogger's "spam prevention" robots. Gates is open again, but it seems that Gates of Vienna was probably the victim of malicious persons flagging the blog as some sort of spam site.
The matter has evidently been resolved, but this is a very sinister matter: the robots are evidently induced to emplace blockages, and the matter is reviewed only after the blogger figures out how to protest later. As a Gates commenter put it -- guilty till proven innocent.