by john253 » Wed Apr 27, 2016 10:25 am
SEM may be a form of web promoting related to the researching, submitting and positioning of a web site at intervals search engines to attain most visibility and increase your share of paid and/or organic traffic referrals from search engines
Search engine optimisation may be a methodology of methods, techniques and ways accustomed increase the quantity of tourists to a web site by getting a high-level placement within the search results page of an exploration engine (SERP) -- together with Google, Bing, Yahoo and alternative search engines.