"Scientific input notations in Moodle and WebCT8/Blackboard9" very detailed comparison looks at:
* LATEXinput
* Creating graphs in Moodle
* Exporting math expressions to other formats
* Accessibility of mathematical content in Moodle and WebCT8/Blackboard9
"To sum up, Moodle’s developers have shown very forward thinking in making sure that all possible inputs and accessible outputs are available for rendering math expressions."
More: MOODLE VERSUS WEBCT8/BLACKBOARD9
Thanks Michael, the article is now included in the Moodle Buzz.