Rubrics
Rubistar
Free! On-line rubric creator that is very easy to use.
Kathy Schrock's Guide to Rubrics
A guru in technology and education! Kathy Schrock has composed a wonderful list of rubric and assessment resources!
Rubrics for Teachers
Teacher Planet is actually more than just rubrics, but there is a huge section of pre-made rubrics for many grades and subjects.
21 Things: Resources for Student Teaching and Beyond by Megan J. Freudigmann is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 United States License.