David Friedberg (WeatherBill), Michael Ferrari (Weather Trends International), Robert S. Marshall (WeatherBug)--Everyone talks about the weather, including investors. Weather data isn’t just for weather geeks anymore, with it rapidly becoming a crucial source of data about retail trends, hurricanes, catastrophe bonds, event insurance, resort traffic, and on and on. And with the rise of web-based data and related services, it is finally cheap and realtime too. How do you separate the weather signal from the noise? If you can’t do anything about the weather, how do you make money from it?