On April 24, 2012 many started to see that Google has started to penalize companies that are buying links for the purpose of passing off the rank. The Google Update was called Penguin. Since then, there have been several different Penguin/Panda updates rolled out by Google. SEM has, however, nothing to do with link buying and focuses on organic SEO and PPC management. As of October 20, 2014 Google has released three official revisions of their Penguin Update.
SEO techniques can be classified into two broad categories: techniques that search engine companies recommend as part of good design ("white hat"), and those techniques of which search engines do not approve ("black hat"). The search engines attempt to minimize the effect of the latter, among them spamdexing. Industry commentators have classified these methods, and the practitioners who employ them, as either white hat SEO, or black hat SEO. White hats tend to produce results that last a long time, whereas black hats anticipate that their sites may eventually be banned either temporarily or permanently once the search engines discover what they are doing.
Why? It allows you track visits on a specific web page. Whatever page that newly acquired customers land on after the sale, this will be your “Destination.” You can add the URL of that page in the “Goal details” section. There are other optional details that you could include. For example, you can assign a monetary value to a newly acquired customer. You can also map the journey that customers take up until they convert. At the very least, configure the first option. You need that hard dollar value to calculate ROI.