According to the results of a survey of 1,200 advertisers performed by Outsell, Google’s AdWords search marketing unit is more effective than Yahoo or MSN (although MSN adCenter is still in limited run) search marketing offerings.

“Yahoo and MSN face extended minority status in the ratings of advertisers if they don’t change the perception that ads on Google are more effective,” stated Outsell at the annual meeting of the Software & Information Industry Association.

Key points to the survey:

• 71% say that search marketing on Google was effective
• 62% say that Yahoo Search Marketing was effective
• 49% say MSN was effective

Find out how Google Adwords ranks in a search marketing survey at http://www.searchenginejournal.com/index.php?p=2871.