Andylew - 1:59 pm on Jun 30, 2010 (gmt 0)
Something definately seems to be on the move.
An interesting quirk I came across today;
A site:domain search returns a different number of pages to what site:domain domain returns (on the affected site not on others). Not just by a small amount but 1700 times the number of pages. Roughly worked through the site: search corresponds to the traffic we currently get and the site:domain domain relates to every page change they have ever crawled on the site.
This put along side other peoples reports that pages that havent been around for years have been apearing in backlinks and non functioning domains apearing in the serps indicates to me that they have all the data they should ie they havent lost anything but since caffine something has gone wrong with their ability to handle that data and at the moment they are working on a fall back algo/dataset and only pushing queries to the 'proper' algo/dataset when the query is so bizare that the fallback algo doesnt have the ability/data to handle it as it isnt a common/cached search query.