Search Engine Marketing: Paying To Be Found Online
Mainly what seperates SEO from SEM is that while SEO is mainly earning traffic through unpaid or free listings, SEM is where you buy traffic through paid search listings or ads. "Search Marketing" is an expression that basically encompasses both SEO and SEM strategies both being the process of gaining traffic and visibility. We usually recommend that start ups or newly built websites start with a healthy SEM budget. It takes time for organic listings and SEO to work and the only way to get results quickly is to pay for them. I wouldn't say it is impossible to get visitors organically in the beginning but it isn't going to come easily or quickly.