Is the right time to invest in some new certifications cloud oriented? Probably yes, but which one? There are different types of cloud computing, with different types of services but also in different way to consume them. All private cloud services are already covered by exisiting product certifications and does not change too much (maybe just in the name of the certification). The only difference is that private clouds are not just an on-prem virtual infrastructure (virtualization is not cloud computing) but has management tools to provide better automation, agility and self provisioning.