SEM or Internet paid advertisement or PPC or Adwords or what ever one may call, has been on high growth rate for many years now and has shown that it will continue to grow in the near future with the potential to grab market share from other advertisement channels. This has implications on all companies that would like to have their products or services advertised. By quickly responding to the market changes and being nimble, they can effectively spend their marketing dollars with positive ROI.
Though I use Google Adwords in the following explaination, you can replace the same logic for Yahoo and MSN. I assume that you are somewhat familiar with natural search, paid search, clicks, impressions and related; and what they mean.
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