There are a lot of people out there who are thunderstruck by business 2.0 when they read a good book on the subject. They want to go into the office the next day and completely change the way they do business. That enthusiasm is great! Business 2.0 really is exciting!
But before looking at what platforms to use, or who's going to spearhead your company's social effort, take a step back. This is the moment to think BIG.
What are your company's greatest obstacles? What are your company's short and long term goals? Only when you have a firm grasp on on these basics should you think about implementing Business 2.0 technologies in your processes.
Otherwise you're just playing with fun toys.