Shares of LinkedIn (LNKD.DL) are trading off more than 2% since reporting better-than-expected third quarter results. Is that really fair? The overall business grew 81% in the third quarter as Talent Solutions, the segment that caters specifically to the needs of corporate and third-party recruiters, accounted for 55% of revenue. All signs point to LinkedIn joining Facebook (META 1.54%) and salesforce.com (CRM -1.59%) as the three dominant suppliers of social software and services. Find out more in the video below.