Create 4.1.1 Define and Explain Learning Object Authoring Tools Quest

Based on an understanding of learning object authoring tools, locate five tools–three tools that are free to use and two that are fee/subscription based (note that some web 2.0 tools may also serve as object-authoring tools). Post findings to your blog, as well as an explanation as to how these tools might be used. Make sure to investigate what others have posted.

http://www.knewton.com/ - subscription, tool used to learning that is based on mastery. It  will direct the student to repeat or continue to practice concepts until they are mastered.
khan academy - free, multitude of  topics and that you can combine to create a course for your classroom
Code academy - free, used as a independant learning toool for learning different programming languages
Scratch.mit.edu - Free, used as a tool for beginning programmers
Schmoop - use to be free but no olonger is.