What's next for LinkedIn?

LinkedIn shot for the moon with its first broadcast TV commercial in March, but the company quickly careened back earth when Microsoft scooped it up for $26.2 billion in June. The 14-year-old company is financially healthy, but the acquisition suggests LinkedIn may have hit a ceiling. Are the company's best days behind it?
The social network for professionals is diverse, with business units that range from publishing and educational training to sales-lead generation. But LinkedIn is still prima