We highlighted a powerful mobile app that allows you to convert to and from PDF files yesterday. However, if you're sitting on a desktop you might want the flexibility to easily convert and share files. This is where the revamped Cometdocs comes into the picture.
There have been concerns about the security of your files in Dropbox. Recently Dropbox added another layer of security similar to Google's two step verification. When you enable two-step verification, whenever you want to login to Dropbox, you will need to use your password, and a security code that will either be texted to your mobile phone or generated by a mobile authenticator app (available for iOS, Android, Blackberry and Windows Phone 7).
If you working on some project or presentation and what to share the work with your fellow buddy that very second for some corrects or proofreading, then what you do? Springnote is web 2.0 service which makes real-time collaboration on office documents and notes easy, here other users can comment, and add content as needed.