Text2MindMap is a free Web tool which allows students to create a concept map using text. Furthermore, there is no sign up or log in required! Students type their text and then select options. Options allows students to edit the font, colour and line style. Once students have completed their concept map they can save it as a PNG (image) or PDF (document). There is also the option for students to share their Text2MindMap on Facebook or Twitter.
Source: Carol Grantham (thanks for sharing)