Open IT Online allows you to open documents and images online without the need of any software to be installed. It supports Google Docs, Zoho, View Docs Online, Vuzit to edit/view documents and Snipshot, Pixlr, Sumo Paint, etc. to edit/view images.
Its yet another tool that I use. Open it Online helps you to open documents online using the above services.
Its a good tool , pretty handy when you want to add any document to your google docs collection.