We've all read the obituaries of organized labor in the U.S. But, there is one segment that has seen a growth in unionized workers: service businesses. And who is leading the way in growth in service industries? That's right, entrepreneurs.

True, union membership as a whole continues to decline. But groups active in professional and service industries are booming, their ranks swelled by workers who fear increased health insurance costs and the outsourcing of jobs to Asia. IT staffers, graphic designers, and engineers -- this is the new face of labor. And guess where many of them work? The average workplace organized last year had just 53 workers. "More attention is being paid to smaller workplaces," says Bob Bruno, a labor and industrial relations professor at the University of Illinois at Chicago, who adds that "organized labor has a higher success rate in small businesses." There are several reasons for this. Labor activists have discovered that unlike large corporations, small businesses often lack the resources and the know-how to fight unionization. Plus, their employees are often more receptive to organization because union reps can make a personal, individual appeal for their support.