The company that i used to work for out-sourced all their link campaigns from a company on the other side of the world. The links that they would establish for us were all PR3+, they were on pages with plenty of other links and the pages were totally irrelevant. We used to make sure that they built the links at a steady rate which wasn't to quick and if the
PR dropped we asked them to replace the link.
Did it work? Yep! Worked every time! Generally speaking, for the level of site we used to work with, 100 links would usually see the site in the top 10 SERPs for the anchor text used.
Now, i know this is bad practice. I knew it wasn't something that the
SEO world would agree with and i knew it was a linking practice that was judging link quality just on tool bar page rank. But, the boss told me to start the campaigns and within 3 months they were (usually) successful!?
I saw this happen with 100s of sites and id say the success rate of these link campaigns was 95%. From what people are saying here that would be a great way to attack a competitors site???
Thoughts please...