Cache Now
A campaign to increase the awareness and the use of web caching.

Desire II web cache
International cache interconnection project. Links to reports, documentation and presentations related to the project.

IR Cache
Project to provide operational hierarchical caching services for organizations and individuals, and to promote their use. Offers documentation, tools and access to logfile data.

Mnot.net: Cacheability Engine
Tool for assessing how cacheable a given piece of content is. Available as a online service or as software.

Mnot.net: Caching Tutorial
Describes the main principles of internet caching.

Sharp Corporation: Super Proxy Script
Autoconfiguration script that hashes URLs requested and tells the client which proxy in a cluster it should use to retrieve the URL.

Web-cache.com
Link collection organized by subcategories including products and services, projects, mailing lists, benchmarking, filtering, and privacy.