This seemed the most applicable section of the board for this post...
Some readers of this board may be interested in a new iPhone app for improvisers called "Suggestion Box", it was developed with input from a group of accomplished improvisers (and I am a regular improv-goer myself) I think it could be useful for rehearsals, warmups and tuition.
It gives suggestions in various categories on demand (as do a few other apps on the App Store) but uniquely it also allows you to combine suggestions into groups, and allows you to edit the suggestion lists yourself to customise it for your local area or audience interests.