When will validator be available?

In the metadata class that I teach, I have students complete a final project that involves creating a metadata schema for a domain of their choice as well as a set of records using their schema elements.  I usually require that all of their rdf statements be validated using the W3C RDF Validation Service.  I have found that it is very instructive for them to use the validator to check their syntax and to verify their semantics using the graph -- figuring out what is wrong when something doesn't validate is an excellent (tho sometimes frustrating) learning experience.

Their projects will be due in a week and the validator has not been available for several days now -- I have gotten the message "The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later" every time I have attempted to validate something.

Can you tell me if/when the validator will be available so that I can pass this information on to my students? 

Thank you,

elin

Elin K. Jacob, PhD
Associate Professor
School of Library & Information Science
Indiana University Bloomington
011 Wells Library, 1320 E. 10th St.
Bloomington  IN  47405
Phone:  812.855.4671
Email:  ejacob@indiana.edu