I do not like coming across as if trying to ‘sell’ through these groups, but I have to be paying attention.
As the owner of a company that gets classified as ‘another list’ or a ‘lead generating’ site, I want to point out the common theme that most everybody should take away from this thread [on LinkedIn] — is that you should take control of your own information and associate with several sites that improve your visibility — to drive people to your business, which you can control.