When I was program co-chair for Narragansett Bay Quilters, we often had trouble finding out who was available and where they were from. We tried coordinating with other local or regional guilds but always found this frustrating and rarely successful. While cruising the 'net last night, I found this site and listed my info on it. It's a great resource for guilds, letting them know who is out there and when they'll be in the area.
Here's the link: http://www.quilters-calendar.com/share/
Check it out - lots of familiar faces there!