Google IOTA and you'll get all sorts of stuff. Inverness Old Town Art... to Institute of Transport Administration. But in Radio terms, its Islands on the Air. There's a contest and an islands collection program as well as activators interest.
RSGB The national society administers the IOTA program.
G3KMA - the IOTA manager's own pages
Contest Rules for IOTA contest
Directory of IOTA Islands here.