While the Zend Framework's manual is somewhat quite good, it lacks a feature that make it a really good manual: search. I find it very frustrating to not be able to make a simple search and therefor having to browse through the extensive TOC to find what I'm actually looking for. Here enters the very handy Google co-op service which allows creation of custom search engines based on Google's indexes. It do not takes more than five minutes to setup a simple search engine, thus providing search capability to the manual :-)
And as a good news never comes alone, I also made the OpenSearch plugin for it.
UPDATE
I made a simpler url to remind of: http://zend.riskle.com/search/ and updated the opensearch thing to use that url.