Almost 90 percent of federal chief information officers say their agency has migrated to cloud computing in some way. That’s according to a TechAmerica survey of about 60 federal CIOs and federal information technology professionals from 32 different agencies. More than one third of the respondents say they’ve already migrated their e-mail services, and about one in five have a cloud-based website or webpage service. One of the responding agencies expects to save more than $10 million a year from switching its enterprise e-mail system to the cloud. Federal systems are split in half between using private cloud providers and public cloud providers. Many CIOs are interested in expanding their cloud systems want to add new collaboration tools and a way to test new environments for their agencies.