I tend to put any and all classes in the library, be it an action helper, view helper, new base controller, what ever... If its used by more than one module or controller I put it in my library. Follow the ZF naming conventions and Zend_Loader can handle all the loading. If its a view helper and is only needed for this one module then I put it in the module's view/helpers/ path.


library
- Zend
- - ...
- MyLib
- -...