In an extensive guide for Inc., Brenda Porter-Rockwell covers the topic of team-building from many angles. Your team is about to Hulk out with positivity and productivity.
Team-building fosters relationships among colleagues and reinforces basic essential skills like good communication and problem-solving. When aligned with organizational attitudes, this can help to make employees of one productive mind as well. If there is a situation or problem that prompted a real need for team-building, then collect data on employee attitudes before and after the exercise to measure if progress has been made. If attitudes improve significantly, you should begin to notice a trend of increased revenue and customer satisfaction.
This scratches the surface of everything Porter-Rockwell covers. You can read the full article here: http://www.inc.com/guides/2010/08/how-to-create-team-building-exercises.html