Conducting business on the web, you need to be visible organically and through advertised links. So SEO and SEM work very well together to provide an online marketing campaign. That is not to say that these are your only choices. There are a number of other online strategies that can work for your business and compliment SEO and SEM campaigns. Things like, social media, blogging and email.
SEM (also known as Pay Per Click or Google Adwords) is when search engines allow marketers to