How to tell if a market is a good one
Questions to ask yourself
What has changed? Why now?
Have the cost fallen or price points have risen?
Has a new distribution channel opened up such as Facebook virality did for Zynga?
Has a new technology emerged?
Is there a new source of customers or demand?
Is a growing customer base being dramatically underserved? (think Palantir and government data analysis)
Is the industry growing rapidly?
What is the market structure?
Is there a lot of hype or interest in the market?
Author: Elad Gil
Source: http://blog.eladgil.com/2011/03/how-can-you-tell-if-your-market-is-good.html