SEO can be easily defined as the strategic development of tactics which are designed to ensure your URL has the highest possible position on any given search engine. One way of achieving this and one hugely effective tactic is to use SEM.And this is where the difference is. SEM is all about specific marketing via search engines. It involves keywords, pay per click and AdWords, but it also involves in-depth monitoring and analysis of metrics for your website so you can monitor activity levels and hits, visits and bounce rates to your website. For example, pay per click and Good Adverts and Good AdWords.First of all in order to discuss how SEM and SEO are different, we must first define each of them. By defining these two terms it will be much easier to illustrate how they are different and how, as an online business owner, you need both to succeed online. SEO - Search engine optimization. This is the method of using a variety of tactics to improve and influence your rankings on search engine results in a positive way so that your website appears near the top or at the top of the results page when a user performs a search which includes the keywords associated with your website and brand While underway, navigators enjoy a chart table that is equipped fully and includes a sound system featuring a CD player and VHF and iPod systems. Up to six adults can lounge and relax in the salon and never feel cramped. Getting to the British Virgin Islands is assisted by Raytheon gauges, a reliable Autohelm autopilot and an accurate GPS chart plotter.