There is a domain now called wordpess.com (yes, the "r" is missing). The whois contact information is being blocked by its registry.
It seems to have a single wildcard DNS entry that points the typo to a web redirection instance that pushes the browser to an ad/link page.
For instance typing in http://purpleslog.wordpess.com, redirects you to http://www.purpleslog.wordpess.com/index/index46.php .
Go ahead and try some random name like http://wfgiuerh.wordpess.com - you get the same effect.
WordPress.com folks...can you start the process to strip the owner of wordpess.com?