In the video below, Fool tech and telecom analyst Andrew Tonner discusses LinkedIn's (LNKD +0.00%) incredible growth streak, and tells investors what to look for when the company reports earnings tomorrow. LinkedIn has beaten analysts' estimates on earnings by more than 50% for three of the last four quarters. Can it do so again? The company's current sky-high valuation is predicated upon its continued ability to maintain this unbelievable growth. If it hits, it could be another major driver for shares upward; but if we see that growth starts to slip, shares could take a hit.