I'm quite familiar with caching options/techniques but I want to make sure I'm doing this as effective as possible. Wondering if anyone has any experience/suggestions or links to good reads on caching? Issues such as - user vs guest content - personalized content - huge page view #s, - Multiple data sources including database, API, widgets, etc. Thanks!
In most cases (i.e. not a huge site with hundreds of thousands daily requests), simply throwing an APC cache in the mix is enough. Just put a lot of memory (segments - segment size) and make a cron script to reset it once in a while.