Upload, convert and share your documents - PDF, DOCX, DOC, ODT, PAGES, RTF, OTT, XLS, XLSX, TXT, PPT, PPTX, ODP and more!

DocDroid is a completely free online document uploading, conversion and sharing tool.

• Upload documents in nearly any format. 
• Share the document via eMail, Twitter or Facebook. 
• Fast HTML preview of the uploaded document for readers. 
• Let the reader choose in which format he wants to download the document. 
• Multiple file upload is possible. 
• Password protection is possible. 
• Supported formats: PDF, DOCX, DOC, ODT, PAGES, RTF, OTT, XLS, XLSX, TXT, PPT, PPTX, ODP and more! 
• Documents can be deleted by you or are deleted after 60 days without view. 

http://www.docdroid.net/

ZumoDrive is the hybrid cloud storage for all of your media.You can access your music, photos, and documents from anywhere with your favorite applications.You don't have to think, or sync your files again, it just works.ZumoDrive's hybrid cloud storage also means you will never have to worry about running out of space.

https://www.zumodrive.com/

Free programs to open any file extension!

Have a file you don't know how to open? Think you need an expensive piece of software to open it? Chances are there is a great free program that's just as good as the expensive one, and you'll find it here.

OpenWith.org provides detailed information about most file extension and links to free programs that can open and create each type of file. All of us at OpenWith.org have found ourselves helping our parents and friends open obscure file types time and time again, and decided that this information was best shared with everybody. There are plenty of great programs out there that will cost you hundreds of dollars to do what you need. What you probably don't know is that there is usually free software that is just as good. You just don't know about it.

http://www.openwith.org/