sem

SEM is short for Search Engine Marketing and refers to online paid advertising, such as Pay-Per-Click (PPC) or Cost-Per-Click (CPC) or CPM (Cost-Per-(thousand)Impressions). PPC/CPC/CPM is widely provided by major search engines, social bookmarking sites, online directories, etc., such as Google Adwords, Yahoo Search Marketing, Facebook, YellowPages.com, etc… PPC listings can be seen in “Sponsored Links”…