Part of the problem for SMBs is that implementing platforms and frameworks generally requires a backend infrastructure, and the manpower and skills to maintain it. Cloud services change the math and make it cost effective for SMBs to compete on a level playing field. This article I read recently shares some good information about cloud security and data backups for SMBs: http://www.pcworld.com/article/248311/take_the_pain_out_of_growth.html