Did an add campaign with Linkedin in the hopes it's target professionals better than Google Adds.
I was ripped off of $420 with not even one prospect or an effect towards the business:)
( was offering Linkedin Headsohts BTW)
Have to get running as far as possible from them.
Was charged many times over without any notification or receipt whatsoever.(discovered charges by mistake :)) )
Very discouraging.
I'm afraid to do any other advertising with Linkedin EVER!
Good lesson though, will keep my eyes peeled (and trust Google more)