| What                                                                                                   |
|--------------------------------------------------------------------------------------------------------|
| [[http://en.wikipedia.org/wiki/Visual_programming_language][Visual  programming language – Wikipedia]] |
| [[http://blockly-demo.appspot.com/blockly/demos/code/index.html][Blockly]]                             |
| [[http://waterbearlang.com/][Waterbear]]                                                               |
| [[http://snap.berkeley.edu/#snap4.0][Snap 4.0]]                                                        |