[Discover] MySQL :: MySQL 5.0 Reference Manual :: 7.5.4.1 How the Query Cache Operates http://dev.mysql.com/doc/refman/5.0/en/query-cache-how.html
(query mysql cache performance) 
[Discover] MySQL AB :: MySQL 3.23, 4.0, 4.1 Reference Manual :: 5.13 The MySQL Query Cache http://mysql.osuosl.org/doc/refman/4.1/en/query-cache.html (query mysql cache)
[Discover] MySQL AB :: MySQL 3.23, 4.0, 4.1 Reference Manual :: 5.13 The MySQL Query Cache http://mysql.osuosl.org/doc/refman/4.1/en/query-cache.html (query mysql cache)