http://mashable.com/2009/11/09/linkedin-tips/
Good advice!
If you’re paying per click, you need to understand the threat of PPC Fraud and ensure that you are not being fleeced!
Here’s an article I wrote for the Cincinnati Business Courier a few years ago that explains the problem.
http://www.entrepreneur.com/ebusiness/ebusinesscolumnist/article203776.html
Good advice in this article!