Learning.com has some content under the Marketplace button that you might be interested in. Remember that the Texas Instructional Materials Exchange (TIME) is available as the Marketplace when you log in to Learning.com.

1. MIT Blossoms content—these are free videos in the areas of math, science, engineering, physics, biology, chemistry.  These videos are geared toward High School with some MS content.
2. Smithsonian content—K-12, all subjects—visual arts, science, arts, history.  There are 1900 items.
3. Waterford—there are some free (for a limited time through June) early literacy content items.

If you have any questions or need a demo of the Marketplace, please let me know. This content will become available under the Curriculum button in your Learning.com account after it is activated and can then be assigned to your students.