Search Engine Marketing
Search Engine Marketing (SEM) is the entire set of techniques and strategies used to generate more visitors from search engines to your business or marketing website. SEM seeks to promote websites by increasing their visibility in search engine results pages through the use of paid search, contextual advertising and organic placement.
Paid Search refers to the text ads that show up in search engines such as Google or Yahoo, which are targeted to a user’s keyword search. Paid search is very targeted advertising, and when supported with strong analytics, can be very useful in determining ROI. Famous PPC is Google Adwords, Baidu PPC etc.