Hi, I had mentioned this festival would be worth having a stall at:
http://www.greenbelt.org.uk/g-source
the link is for the big exhibition tent where all the charities and organisations have stalls: I didn't realise it would be so expensive.
That said, I still think it would be something good to consider for the future. It's a pretty political festival, and it would be great to have a FS talk on the menu one year... but perhaps its a big project for just now.
Anna xxxx