Since the first real information came out about Izea's (PayPerPost) new SocialSpark service, that is in testing but will formerly launch in January my excitement has been a little tempered.
As I wrote in my initial preview of SocialSpark, there will be new metrics for gauging the authority and influence of a blog, to help determine advertising spend, not only based upon traffic and demographics, but also on past performance with CPM and CPC data also being made available.
With SocialSpark, any required links will be nofollow, though there is an option for editorial links without a nofollow.
All the negotiation about
PPP or Pay Per PDF White Paper
After Tim posted his findings regarding the indexing of flash websites, I suggested to him that he should carry out similar research on PDFs, because you can't nofollow a link in a PDF. As it happened he was already running a test, and he has just published the results to his PDF SEO research
Companies already pay for hosted pages, why not pay for hosted white papers or product catalogues?
On the negative side, PDFs when distributed virally might end up pointing to old resources, and it is hard to track them if you use direct links to resources. You should