This is a new Magic Quadrant from Gartner, and it looks like a pretty crowded market at the moment.
Talent management suites are an integrated set of applications, including workforce planning, talent acquisition, performance appraisal/assessment, goals management, career development, succession management, learning management and compensation management. These functional components align with the key human capital management (HCM) processes of plan to source, acquire to onboard, perform to reward and assess to develop.
SuccessFactors has a copy of the complete report available online at time of writing, if you are prepared to supply your details.