How Successful have you been with networking on LinkedIn?

I have had a LinkedIn account for probably as long as I have had my Virtual Assistant business, which is going on two years. I never kept up with my account and a few months ago, I read somewhere that LinkedIn was a great place to network with prospective clients and other Virtual Assistants. When I read about this, I thought I would give it another try and began reading all of the wonderful articles and discussions and learned so much and have already found a few new clients that I have loved working for more than anyone I have worked with since I’ve been in business. How successful has LinkedIn been for you?