I'm still investigating, but I have a suspicion that there may be another new spam method on the block.

There seem to be a proliferation of sites that now allow pretty much anybody to submit 'articles' for publication. The sites make money by presumably getting page views and advertising clicks. On one site I've seen recently one 'author' has written about 10 articles, all on the same day, all published on the same day. The articles are short - less than a page - and the content is less than accurate or useful. It is, however, all related to web hosting.

However, the author does include a convenient link to his own hosting company.