LinkedIn posted second quarter earnings of 51 cents a share on revenue of $534 million. Wall Street analysts were looking for 39 cents a share on sales of $511 million. Last year, the business networking site earned 38 cents a share on $363.7 million in revenue. Revenue from talent solutions products totaled $322 million, an increase of 49% from a year ago. Revenue from marketing solutions totaled $106 million, an increase of 44%. The remaining $105 million came from premium subscriptions, which also rose 44% from the prior year. TheStreet's Gregg Greenberg has details from New York.