The following link recently came through my inbox. I don't have enough data to assess. Any studies and thoughts? https://blogspot.us12.list-manage.com/track/click?u=22369801c17077d8e488a5a88&id=ed378cdbc5&e=7e3626e3a5 *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html