Hello, Are you still looking for an expert in the use of social media for businesses? I hold a PhD in Media Studies and work in both training/speaking and management and media consulting. You can see examples of my work here: tnmcoaching.com (built site & social networking and write regularly) and rebeccalself.com
I'm leading a training course for the shipping giant Maersk in Denamrk this week and will be back in Switzerland next week.