ON FEBRUARY 05. 2006. U.S.-BASED INTERNET SERVICES COMPANY YAHOO! INC. (Yahoo!)
moved aU its advertisers to a new ranking model called 'Panama' in order to regain customers
who had shifted to the Google more popular AdWords.5 Yahoo!'s new algorithm
and ranking model would rank the advertisements based on the highest bid on search keywords
by the advertiser and the number of clicks. Industry analysis opine that with the new
model Yahoo! would be in a better position to challenge Google.