In case you missed it in Yellowcast, episode five. There's an undocumented feature in Lotus Domino that lets you pull HTML from a RichText field. This is a very useful feature for me at least.
Example url: http://www.notes.net/secrets/undocumented.nsf/documentation/easteregg?OpenField
I believe Carl Tyler was one of the first to blog about this.
Why not document such a great feature? Why, IBM?!