WordPress 2.5 and the Object Cache: This comprehensive article by Neosmart discusses the caching changes that are going into place with WordPress 2.5. The article has very pertinent links, explains the use and application of the various types of object caches in WordPress and how they are being changed and improved in this new version. I will not steal Neosmart’s thunder by revealing much here, but if you are interested in understanding the nuances, history and best practices of caching in WordPress (primarily Object Caching), head over to the link above.
Worthy of mentioning however, is that I have never used any type of caching on this blog beside the occasional testing of code and plugins. I love the dynamic nature of the content that I help create and I cherish the highly dynamic nature of WordPress. That is one of the properties of this excellent tool that attracted me to it in the first place. Every site that refers you here, every post you click on, every page you visit, every link you follow, every comment you make, every post you rate and every search you perform is recorded and is used in some way to provide you with a better browsing and reading experience. Even the ads are displayed according to your visiting habits and your participation on this blog (and I have Ozh to thank for much of that code).