I've gotten quite a number of useful responses so far; I'll keep aggregating them until tomorrow afternoon or so, and then post a summary. I propose to mention educational institutions by name, but companies only by market segment, and not to mention any contributors names; if that's not opaque enough for anyone who replied, please let me know. Cheers, -- jra -- Jay R. Ashworth Baylink jra@baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://baylink.pitas.com 2000 Land Rover DII St Petersburg FL USA #natog +1 727 647 1274