Documentation about all the complex terms about cloud explained in details.

OpenStack is truly opensource project and everyone can use it or change whatever he wants. For developers it means that you always can know what is under the hood. For companies it means possibility to try OpenStack or use it without expenses on licenses. OpenStack has modular architecture that allows you to select a set of services that you need or create and integrate your own service (For example your own billing or integration with services of your company). OpenStack is fast-paced project that evolve continuously, every new release brings new services and new features. I like the community behind OpenStack. If you want to be OpenStack contributor, it is really easy.

Open Sourced, collaborative movement with great knowledge sharing amongst peers. The community helps each other a lot.