While chatting with Jeff Pulver, he said that his primary criteria for making an angel investment is when the entrepreneur has a great answer to the question:
What are you disrupting?
Thought of that today when reading Entrepreneur magazine and a quote from the co-founders of Jajah.com (very cheap phone service)
They said:
“If you don’t disrupt your own business and the industry at least once a year, somebody else will.”