tedster - 5:42 pm on Sep 12, 2011 (gmt 0)
PDF is a separate file type like MP3 or SWF, rather than one of the choices for an HTML file. Apples and kumquats.
And yes, PDFs offer an often overlooked value for SEO. Even websites who publish a lot of PDF files often ignore some of the basics of SEO and web marketing in their papers.