I came across a couple of interesting sites today – Writer and StoryTop – through Lifehacker and downsquad respectively. Writer is an online text editor with a very simple interface (distraction free interface as per the Lifehacker post). It also allows you to post your notes onto some common blogs in the draft mode. You can also create an account for better management. If you are interested in simple and distraction free text editors, you can also try out Darkroom which is for Windows or WriteRoom for Mac OS X.
Coming to StoryTop, it is an online story creation tool, as the name suggests. It allows you to create, save and share simple stories which can span multiple pages. I guess it could also be used for making simple presentations, and not just stories.