Recruitment-process outsourcing -- while still in its early stages, compared to other HRO services such as payroll and benefits administration -- is experiencing rapid growth, according to NelsonHall, an independent BPO analyst firm based in Boston and the U.K.

Global RPO will see an average annual growth of 37 percent to become a $7 billion market by 2010, according to Targeting Recruitment Process Outsourcing, authored by Gary Bragar, HR outsourcing research manager at NelsonHall. The "war for talent" is driving the growth, according to this excerpt from the report.