Let me backtrack a little bit for a moment. It used to be really easy. Several years ago, as search engines were still evolving, marketers discovered it was easy to manipulate their SERP, search engine results page, and force their website or blogs to rank higher on a list of sites brought up by a keyword search. But, search engines have learned to filter out the �noise� and focus more on content quality as it relates to the keyword search and have made many practices that fell into the ethical gray area obsolete. In fact, if you do employ any of the following practices, a search engine is likely to rank you lower on the list than other similar sites and blogs based on low content value.