
Just as open source itself has gathered more interest during the economic downturn because of the cost savings it can offer businesses, cloud computing is getting more attention because it can allow businesses to take advantage of IT infrastructure on a pay-as-you-go model. Increasingly, there is an intersection between these two trends: the open source cloud. Ignacio Martin Llorente has
a very good roundup of the tools available at this intersection--open source resources that can let businesses customize their own cloud infrastructures. Here are some of his good citations, and several of our own.