Books I've found useful on Team Management:
Brilliant Teams by Douglas Miller
6 Secrets of highly effective teams by Stephen Kohn & Vincent O'Connell
The Five Dysfunctions of a Team by Patrick Lencioni (Written in cartoon style)
Lead Work Teams by Lola Mavor Green
Managing Virtual Teams by M Brown, B Huettner & C James-Tanny (Covers using collaborative tools such as wikis and blogs)
More Team Building Activities for Every Group by Alana Jones Rec Room Publishing Inc. 2002
The Facilitator Excellence Handbook by Fran Rees Publisher Pfieffer 2005