Check out Where is the change community-part 2 by Gilbert. Here is an excerpt:
While writing part 1, I had waaaaay too much fun with the data of LinkedIn, Google and Bing (don’t judge me) and thought to quickly share some interesting numbers. Don’t get too hung up on the details, it’s not peer-reviewed, tested or proofed in any way, it’s just MS Office and my inner geek at…
The full article is available here.