General Links and Articles
ERIC Clearinghouse on Assessment and Evaluation
The ERIC®Clearinghouse on Assessment and Evaluation seeks to provide 1) balanced information concerning educational assessment and 2) resources to encourage responsible test use.
CRESST Home Page Funded by the U.S. Department of Education, the National Center for Research on Evaluation, Standards, and Student Testing (CRESST) conducts research on important topics related to K-12 educational testing.
Creating and Assessing with Rubrics.  A five part article to help teachers create rubrics.

Rubrics
Kathy Shrock's Guide for Educators.  The Assessment Page contains links to various rubrics divided by project type.
Rubistar.  This free online program allows you to generate and save your own rubrics.
Rubrics Generators from Teachnology