The School Redesign
Network at Stanford University has excellent resources,
including information on
performance-based assessments.
Assessment Resource Library at Norwest Regional Educational
Laboratory.
The Coalition of Essential Schools has resources on various
forms of
assessment such as portfolios, exhibitions, planning guides
for teachers, the use of rubrics and alternative assessments.
PerformanceAssessment.org at the New York Performance
Standards Consortium acknowledges that "one size does not fit
all".