announced today that it will be updating its ad ranking algorithm for
AdWords, and making that process a bit more transparent for
the end of the month, Google plans to implement an improved
quality-based bidding system, updating the current AdRank algorithm
that first launched in August 2005, and has been updated consistently since then. The last major updates came in December 2005, and again in July 2006.
Enhancements came the in the form of landing page quality scoring
additions that left many advertisers upset with Google’s lack of
information regarding how that quality score was reached.