Contrary to popular perception, many open source vendors are making money, even growing in size, revenue, installed base, and influence. Their secret? The dual license, a business model that allows software makers to provide commercial software licenses for a fee, while simultaneously providing free software to a broader community. Industry analyst and longtime Linux watcher Stacey Quandt explains how it works.

The highly-competitive financial industry has a history of adopting IT trends ahead of the curve. The Street's forecast for Linux? A strong buy.