Yahoo this week moved its open-source cloud computing initiatives up a notch with the donation of its Traffic Server product to the Apache Software Foundation. Traffic Server is used in-house at Yahoo to manage its own traffic, and it enables session management, authentication, configuration management, load balancing, and routing for entire cloud computing stacks. The editors at OStatic asked the cloud computing team at Yahoo for a series of guest posts about Traffic Server, and you can find the first one, on what exactly Traffic Server does, here.