I am also (International Airlines Passenger Assoc.) IAPA-member (as posted about 2 months ago), mainly for some hotel-discounts - sometimes for individual bookings (and miles), but their handling travel-agency in Switzerland is not the best (hotelplan owned by migros).

http://www.iapa.co.uk/

I don't recommend any of their insurances (and they mail you for signing insurances every fortnight).

If you want to become a member, give the info and mileage credit to philforest.