This is certainly an opinion combined with usage facts. I believe the most useful tools act as productivity tools as well as online deliberation tools. I find tools like Google Docs to be useful simply because you can write and edit a document and share it with another party miles away.
Likewise, there are plenty of tools that allow you to share information through a screen with other people. I also like Drop. Io, as you can upload a lot of large documents quickly without having to send them through email.
Another similar tool is Usend. Io or Send.io. Such tools as ReviewBasics are useful for sharing graphics and giving feedback, or Tutor.Com for tutors and students.
It's all a matter of personal preference as to what are the most useful for you. There are plenty of other similar tools in this area, from instant messaging to file sharing. Here are some collaborative examples of communities with online deliberation.
Crowd Spirit crowdspirit.com Ideablob http://www.ideablob.com Kluster http://www.kluster.com.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.