When people search on a product or service Google displays businesses ads that specifically relate to this search. These ads appear on the top and right of the search results - often referred to as Sponsored Links.

Google's Adwords is an excellent tool for market research because it is;

• Low Cost – get real stats on your market for just
  a few cents
• Immediate – up and running in days
• Track Results – easily track responses to any goal
  
• Flexible

The first 3 benefits are pretty self explanatory but where the real power in using pay per click as a market research tool is in its flexibility!

No other form of advertising allows you to alter your message as simply and quickly as Adwords. You can adjust your message whenever and as often as you like.

This flexibility allows you to split test different messages, benefits or ideas to see which message has the greatest appeal to a potential buyer.