Aaron Wall has talked about a new rank checker tool SerpArchive.org The tool “is a service which daily stores the results of search engine queries indicated by user.” This service enables users to:

• to track the dynamic changes of the results of search engine queries
• to follow the rating changes of your resources and the resources of your business rivals in real time
• to analyse the changes in rating algorithm of search engines
• to track advertising programmes of Google Adsence
• to track down sites which appear/disappear from SERPs
• to analyse the dynamic changes of Google PR
• to follow the history of changes of Google cache in time