To gain a better understanding of Lookup Library bundled with NetBeans Platform. I have found following links which seems to be useful for getting started with it. Also, this page would get updated, as soon as I discover any blogs, demos, etc. featuring Lookup Library.
Lookup Library – The Solution to Communication Between Components
Lookup Library API
Lookup Library SPI
Inversion of Control Containers and the Dependency Injection Pattern
Updated: 4th Jan, 2009