The Aylesbury CTC Facebook group is the best place to keep in touch with other members, ask questions, see our planned rides, or invite others to join you for a ride. You will need to have a Facebook profile to join the group, but you can find it here.
South Bucks CTC where you can find out about the other Buckinghamshire CTC groups including the Midweek group.
Aylesbury Cycling Club is the place to look if you want to get into cycle sport; time trials, road races, cyclocross or MTB racing.
Buzz Cycles is the nearest surviving local cycle campaigning group and organises family friendly leisure rides.
Audax UK is the place to look for long distance endurance events locally and all over the country.
Open Street Map is the place to go for FREE Garmin compatible maps of anywhere in the world, though some parts are mapped in less detail than others. You also get Windows and Mac installable maps, which will work with Garmin Basecamp, in the same zip file.