Here’s an excellent quote from the OpenGeoData weblog, really worth reproducing:
”We think the natural tendency is for producers to worry too much about protecting their intellectual property. The important thing is to maximise the value of your intellectual property, not to protect it for the sake of protection. If you lose a little of your property when you sell it or rent it, that’s just a cost of doing business, along with depreciation, inventory losses, and obsolescence.” — Information Rules, Carl Shapiro and Hal Varian, page 97.
Words to live by!