SEM, on the other hand, costs money but can deliver very rapid results. Your website must be optimized to make sales or at least drive a customer to get in touch (GIT – in marketing terms) so you can make a sale. You should approach SEM with care and make sure you completely understand how much money you have exposed at any one time. Start slow and evaluate your results.
Search engine optimization (SEO) receives a lot of love from inexperienced marketers. It’s seen as “free marketing” in that you can handle your own SEO work (as long as you follow some rules to do so), and thus all it requires is your time to make things happen. SEO is simply what you do to your website and web pages to make them show up in “organic” (or unpaid) search results on search engines.