Click here to find the 2010 Agency Business Report rankings, individual agency profiles, and special features, including a video interview with Richard Edelman and Ogilvy's Chris Graves.

Following a year in which client budgets and agency revenues decreased, industry heads are cautiously optimistic about the outlook for 2010. 

It's amazing the difference a year can make. Last spring, there was a palpable tension in the air as agency CEOs tried to predict what type of business outcomes 2009 would bring. Faced ...