Hi Everyone! Adwords has been in practice of changing its ranking Algo time by time. Has anyone noticed this gradual change? While researching for the Relevancy secrets, I today came across a PPC analyst's article about the frequent changes in Adwords Ranking Algo. Link to that article is : http://www.positionconcepts.com/Search-Engine-Marketing-Research-Analysis-Articles/google-adwords-algorithm.shtml Refering to this article, " Noticed First in Early July 2005 Question: My Google AdWords ad for my keyword has ranked in the top position for over a year and on Monday it's all of a sudden ranking 27th! I changed nothing and I'm still bidding an outrageous amount, so WHY AM I SEEING MY AD IN 27th position? Answer: Google added something new to the algorithm called (for lack of an official name) a LOCALIZATION FACTOR. Now the ranking formula looks like this: [ MAX BID * KEYWORD CTR * (AD GROUP CTR or AD COPY AVERAGE CTRS or something to this effect) * POSSIBLE A CAMPAIGN WIDE CTR * POSSIBLY SOME CAMPAIGN OR ACCOUNT AGE FACTOR * (A LOCALIZATION FACTOR APPLIED DEPENDING ON WHERE THE SEARCH ORIGINATED)] = RANK SCORE Result: Your ads now rank in different in different parts of the country (or world) depending on where the search for your keyword originated!" Can any one explain the variables "Campiagn Wide CTR" and "Account Age Factor". Need to know to what extent is this new algo true. Farhan