Most companies have a website. A lot of individuals & companies have blogs. Yet, very few of them have traffic or make money out of their online presence. If you are not sure if you site gets visited and what your potential customers are doing with it, now is a good time to start getting traffic (and start making money). It is no secret to anyone now that people online are searching. Therefore, most of your visitors (ie: potential customers) will be coming from Search Engines. Therefore, Search Engine Marketing (SEM) also commonly known as Search Engine Optimization (SEO) is a great place to start getting more traffic.