It is set to introduce a feature called 'AskEraser' that enables users to toggle storage of their search history on and off. AskEraser's status will also be shown on every page of results.
Claiming it will be the sole search engine to provide users with complete control over their own privacy company CEO Jim Lanzone refreshingly stated: "Anonymous user data can be very useful to enhance search products for all users, and we're committed to being open and transparent about how such information is used. But we also understand that there are some who are interested in new tools that will help protect their privacy further, and we will give them that control on Ask.com." Encouraging stuff.
Should a user choose to disable AskEraser and let Ask keep a record of its search history all data will be stored for 18 months then deleted – a system inline with what Google's revised policy now offers.
AskEraser will be added into the Ask US and UK sites before the end of the year before spreading globally in early 2008. Google though you aren't likely to take note.