Some options for extending the Google Drive platform
“As it turns out, Drive is much more than just a different name for where you used to store documents and spreadsheets. For example, did you know you can fax people documents and PDFs from Drive? Well, you can, and usually for free. You can also edit images in Aviary or Pixlr, send presentations to SlideRocket, and handle Microsoft Project files with Gantter.
When you open the door to non-Google apps, Drive becomes a launchpad for a wide range of useful web tools.”