Rubrics are explicit schemes for classifying products or behaviors into categories that vary along a continuum. They can be used to classify virtually any product or behavior, such as essays, research reports, portfolios, works of art, recitals, oral presentations, performances, and group activities. Judgments can be self-assessments by students; or judgments can be made by others, such as faculty, other students, or field-work supervisors. Rubrics can be used to provide formative feedback to students, to grade students, and/or to assess programs.

A Google search of 'rubric' brings up a tremendous number of websites discussing rubrics, with examples of rubrics and rubric generators. Some of the more useful ones include:

Using Scoring Rubrics
RubiStar Home
Rubric, Rubrics, Teacher Rubric Makers
Kathy Schrock's Guide for Educators - Assessment Rubrics
ClassWeb Tools - - Linsk
The Rubric Bank
Rubric Template