Ring said a lot of really good things. If you think you're just going to throw up a facebook page or a twitter account and people are going to start calling, you're mistaken. Becoming active and engaging people is what it takes. and it takes a fair amount of work. Like anything you'll get out what you put in.
I see so many people open twitter accounts with some automated message that tweets something out 4X a day never interacting. Sorry that's not going to work. Follow the advice of Ring and Tony and you'll go somewhere but like all good things it will take time.
I wrote an article a while back on my blog http://blog.servicevines.com/social-...a-hearing-aid/