Expedia-Hosted Domains Spamming

SEO Black Hat reports that it appears Expedia France is spamming the search engines. What this appear to be are hosted spam pages on the expedia.fr domain name. If you do a search at Google for buy viagra you will currently notice that buyviagra.blog.expedia.fr is the 2nd result. There are many other examples of these pages, in fact, my blog has been denying comment spam from all sorts of Expedia France subdomains including homeequitylineofcredit.blog.expedia.fr. This may just be some sort of Expedia hack, where spammers buy the subdomain from Expedia, to do what they want with it.