LinkedIn Reaches 100 Million Users. First Million Get Thanked Personally.
Sometimes referred to as the Facebook for the business set, LinkedIn provides a multitude 
of information and contacts to its members. Last week, LinkedIn notched its 100 millionth user. According to the metrics on my LinkedIn page, I'm connected to about 4 percent of them. That's a lot. I hope they don't all decide to come over to the house at once.
In a nice touch, the founder of LinkedIn sent a personal letter of thanks to the first 1 million adopters, specifically citing their order of signing up. I didn't get a letter as I missed being in the first million by a mere 16,915,876. If you are looking for your letter, you can determine if you are going to get one by looking at your full profile URL. Your order in the LinkedIn hierarchy is listed after the "id=__" in the URL.
I'm probably not going to get a letter from Mark Zuckerberg either.
