I'm currently writing a blog and trying to increase its PageRank. The annoying thing is: people keep reposting articles I've written on Facebook and Twitter. From what I've learnt, all these links are NoFollow, so they don't affect PR in any way.
This means that I'm currently asking friends who blog to link to my site, trying to get published in blog directories that nobody reads - just to get a PR greater than 0/10. This just doesn't seem like a valuable way to rate a site's usefulness.
So, I ask, does Google have any ambition to make Facebook a determinant of PageRank? I know people would say that this would just lead to spam accounts - but there could also be a system for ranking Facebook accounts (based on factors like how long the account's existed for, how often the user posts links, whether they have a certain number of friends.) It just seems unfair otherwise.