Search Engine Optimization (SEO) is incorporated in the SEM. It is a process that adjusts and changes the content of the website and its architecture such that it is ranked higher in the result pages of the search engines. There are tools available online to make your website or specific web pages search engine optimized. The generation of leads depends a lot on how many people your website can reach and Search Engine Marketing is the best way to achieve that.
Sales leads are generated on the basis of demographic criteria such as FICO score (United States), income, age, household income, psychographic, etc. These leads are resold to multiple advertisers. Sales leads are typically followed up through phone calls by the sales force. Sales leads are commonly found in the mortgage, insurance and finance industries.