A man is silhouetted against a video screen with an Facebook logo as he poses with an Dell laptop in this photo illustration taken in the central Bosnian town of ZenicaBy Alexei Oreskovic and Rodrigo Campos SAN FRANCISCO/NEW YORK (Reuters) – For buyers in internet shares, it used to be a banner yr: shares of many companies doubled as revenue climbed and on forecasts for rip-roaring boom in earnings. Whereas there’s the potential of a decline in some Web firm stock prices which can be out of line with their cash outlook, they are saying there’s little likelihood of a bloody retreat. Most importantly, this yr's stars, comparable to Facebook and Netflix, actually earn cash. interNet-primarily based promoting has grown into a mature, practicable industry, and computing speeds give a boost to video and complex gaming.