Prof CR has it right, in my view too.
If you say: want to come to France next weekend, it will cost you a third of the hire charge and landing fees and I expect the flight to be two hours and landing fee to be #20, then "club noticeboard" on the "premises" only.
Otherwise you are getting into passenger carrying, and so against the ANO.
However, come and join our club and then you might be able to come on experiences like this: ie last weekend we went to France, there were three of us in the aircraft and it cost a third of two hours flying and a #20 landing fee... the weekend before we went to Belgium... the month before we went to Holland...
Once actually bone-fide members of a club, whether or not you then circulate "items of interest" that are on the club noticeboard to members via email.... then that is getting darker grey. Don't know which of the 50 shades!
Of course, with the www it is really no different than phoning the club steward or CFI and saying: are there any adverts for trips on the club noticeboard and can you read the details to me!
But as my pal says: cutting edge is bleeding edge!