The main objective of reducing the gap between processor speed and memory speed, is achieved by proposing customization techniques to the web caches. These techniques can enhance the performance of the traditional web cache replacement policies deployed at the client side browser caches. This concept can be extended to group of users, so that the cache deployed in intermediate stages can also be customized to cater to a group of users and for co-operative caches. Experimenting with a grid of co-operating caches and speculating the interests and surfing pattern of more than one client is a real challenge.