Here are some links you may find useful

English Folk Dance And Song Society

Welsh Folk Dance
Info about Welsh Folk Dance

Flook:
"In the pantheon of Irish/English folk groups they don’t come much more revered than Flook." Quote from their Website

Canol(MySpace):
Canol on MySpace

The Green Door B&B
This is a B&B in Llanfyllin.

Robin Lamb
Robin Lamb is a Barn dance/Ceilidh caller. Canol work with him on a regular basis.