SageMathCloud is an online service, where you can develop and run mathematical and scientific computations in a web-browser. You have access to a full-fledged linux environment, that builds on top of the best open-source solutions, e.g. Python & many Python libraries like NumPy, SciPy, IPython, ..., the mathematical software system Sage, statistical software tool R, and much more. Additionally, all files allow collaborative editing and the Sage and IPython worksheets add convenience. Your data is periodically snapshotted and backed up.