Well i have money to invest, and I'm not sure how to spend it. There are people offering temporary backlinks from PR7 .edu domains for a hundreds of dollars, but then again there are private blog-networks where for that same money you can get hundreds of PR 2-5 links. And i can't seem to figure out which one is better. It's seems like the chances of getting penalized would be greater if you have smaller amounts of links, thus go for a small amount of expensive high PR ones. Any suggestions?