We can create various kind of ads using google ads network and target various audience. Majorly we can target google search, website visitors (display ads) and you tube audience (video ads).
These 3 are very effective ad campaigns we can create and display the ads. It will reach huge audience with less cost that too targeted audience in very less time. who ever are not ready to wait for long time until the website reaches the 1st page of google search by applying various SEO Strategies can easily go with SEM.