classmarker.com - Create custom tests for your students to take online. Tests are auto-graded.
overlord (#1) 3117 days ago
overlord (#1) 3200 days ago
voicethread.com - Group conversations around images, docs and videos
calc5.com - Online calculator with symbolic calculations and graphs
fooplot.com - Online 2D and 3D function graphing program
watcut.uwaterloo.ca - Create multiple choice exams for use online or for print.