Microsoft's .NET is the technology developers love to hate. They worry that if they focus on working with it, they won't able to branch out and will earn less money. Those concerns might be hindering them, since .NET developers are needed in pretty much every market in the country, and time has shown their concerns about being pigeonholed and held back in salary are overblown. It's a dynamic that impacts both you and the job seeker, and details are in October's Dice Report.