we went to a GLASS meet a few years back... we were the only people who turned up.
Waited an hour, got bored, set off home and stumpled upon a P&P site... and had an aswesome day.
Anyway, i digress - what are you after from GLASS / CRAG / TRF
If ya the member of a ARLC or a response forum yu can get full access if ya wanna do summat concstructive join CRAG. At least they go out and repair lanes etc. TRF is mainly trial bike riders.