Alice http://www.alice.org/
Artist with Anna and Elsa, from Frozen (beta) http://studio.code.org/s/frozen
Code.org http://code.org
Codespells http://codespells.org/
Hour of Code http://studio.code.org/
Lightbot Programming Puzzles http://light-bot.com/
MIT App Inventor http://appinventor.mit.edu/
Pursuitery https://pursuitery.com/
Scratch http://scratch.mit.edu/
ScratchJr http://www.scratchjr.org/
Scratch: Creative Coding Learners Workbook http://scratched.gse.harvard.edu/guide/files/CreativeComputing20140820_LearnerWorkbook.pdf
Tynker http://www.tynker.com/
ArtsEd4All 