Hello, it seems since Penguin buying thousands and even hundreds of bad back links can only hurt your ratings not help it. I had bought 10,000 back links a early this year on fiver and my sight have disappeared of Google all together. I found that a small number of RELEVANT links that are impeded in text , like original articles ( not spun ) is hundred times more effective then junk links.
Here is links i tried that were totally not effective:
- Blog comments links
- Profile Links
- Spun Article Links ( have some effectiveness but nothing compared to original articles)
- Video Links
- Links placed together on pages of Junk irrelevant Blog Networks, containing hundreds of other junk links
Finally anchor text needs to be diversified. Many links with exact Keywords look totally unnatural to Google, need to have diversity like " Click here ", “Company Site”, related keywords etc
What kind of links have you found effective ?