Recently RapidMiner kicked off a new program called Office Hours. Every Wednesday a product expert will show off something cool they created with RapidMiner. This lasts for about 20 minutes and viewers can ask quesitons via Twitter. I recently did one on Advanced ETL techniques which you can watch here.
I'm embedding last week's Office Hours by our own Dr. Puente, which was fantastic. I really loved how he mashed up RapidMiner, R, and Python in one single workflow! It's a must watch if you're looking to use the best of the open source world in one single platform!