The Photopreneur blog has a good article called The Biggest Obstacles to Your Photo Sales.
If you’re considering selling your images, this is a great blog to follow.
Microstock baby! You can start shooting stock photos right in your own home using equipment you already own.
Here’s a link to Microstock Diaries where the secrets of shooting for cash are explained. There are some photographers who work full time shooting for microstock galleries like iStockphoto.