I was asked the other day to put together some resources for a customer on plugin development in Notes. As you all know it can be hard to find resources for plugin development in an Lotus product, but we are working to change that. With that being said, I put together a short list of links that are essential for all Notes plugin developers. If you are new to plugin development and have never written a plugin before I suggest you start with the general Eclipse plugin development articles. Hope this helps.
Notes Client Java UI Javadoc
Notes Client Java UI API Test Plugin
8.5.1 – http://bit.ly/gsWimk
8.5.2 – http://bit.ly/hza5TL
Videos On Getting Started With Plugin Development In Notes
There can also be found on my blog.
General Eclipse Plugin Development Articles