Twiddla has many useful functions:
1. Whiteboard- use a blank page and create any type of text you would like. Communicate with others by writing, drawing, or using shapes, all on a page created solely by the group.
2. Web page- upload a webpage URL and be able to use the website in real-time while communicating with the group about suggested changes, how to questions, or whatever other kinds of collaborative uses you can think of.
3. Document- upload a personal document and have the group review
4. Image- upload an image and mark it up!
5. EtherPad- write text and share thoughts.