While cloud computing is a new tool with unique challenges, many IT chiefs say the technology is helping them improve their organizations' capabilities quickly. During a recent Intralinks panel discussion, CIOs praised the cloud for offering capacity and efficiency, even as challenges remain, such as bandwidth and security concerns. "The choice of a cloud is not very different than the choice of an ERP application. It's an enterprise architecture choice. What you have to really understand first and foremost is what are your points of extension?" said IntraLinks' Fahim Siddiqui.