Hi Tim,
I think people have been slow to respond simply because there aren't that many sites that are specific to traditional archery. I'm sure there are load of clubs that have members shooting longbow and flatbow but there seems to be few informational sites that already well documented on the Sagi board.
For what it's worth at Aire Valley Archers the is an increasing number of members shooting Longbow. When we moved indoors last year we set up a mini-league for the Portmouth rounds which was great. It was fun, informal and involved sherry at half time. I think the jolly nature of it may have ruffled a few compound bow members feathers. I suspect we'll do the same this year
Here's our site
http://aire-valley-archers.co.uk/