Three search algorithms are there - On-site, Off-site, and Whole-site algorithms. Instead of buying links, you can invest in creating high quality content and promoting your site in a way that attracts natural backlinks. Taking this approach doesn't cost you more than buying a bunch of bad links, and you can …

You don't have to reinvent the wheel, but trying new things with campaigns is a great way to stay on top. You should definitely be using canonical URLs with keywords and a relevant directory structure that also includes keywords. You should also avoid using too many page variables after the …