Email is the main way we communicate to organise expo. It is essentially obligatory to participate in this. Joining the email list does not commit you to come, it's just a mailing list.
Sign up to get emails here: lists.wookware.org/cgi-bin/mailman/listinfo/expo". This is a new email system created in 2018 so if you think you are already on the list but you joined before 2018, and you haven't been getting many emails recently, you are probably on the wrong list. So visit that webpage and sign up to the new expo list (hosted on wookware.org not on the university).
You will be sent email requesting confirmation, to prevent others from gratuitously subscribing you. This is a private list, which means that the list of members is not available to non-members.
The email list is old-school: text only, no fancy formatting and only small file attachments allowed.
Once you have signed up, you can also choose whether or not to be visible to the other people on the list. To see the other members of the list ("subscribers" to the list) look at the roster. (A link to this roster is at the bottom of your sign-in page.)
CUCC EXPO 20xx - private. This year's Expo Group on Facebook. You will need to apply to join this and you should if you have a Facebook account.
Cambridge University Caving Expedition - public. The public face of the CUCC Expo on Facebook.
During expo we try to do organisational things on the former and public discoveries on the latter. For example, we are organising the expo training weekends on the private group.
@CUCC_Expo. This is our Twitter feed but posting is intermittent. We had nothing during 2019 but loads of stuff during 2017 and 2018.
cambridge_uni_caving_expo is our Instagram feed. Only 30 posts, but some wonderful photography. If you are looking for an expo-related background for your computer, this is the place. But there's also very good stuff on the ukcaving blogs too.
Slack for expo - private. This real-time chat has a dozen channels which you need to individually sign-up for: general, finance, food, gear, survey, website etc. Comments are archived (up to a limit) but it is not a "medium of record". This is new for the 2020 expo. Contact the expo organisers to get access.
#expo - public. An open-access open-access real-time IRC channel (ephemeral, not archived) for real-time discussions about everything but mostly software people.
Also see CUCC on facebook: Cambridge University Caving Club (CUCC) - public.
We maintain a blog during expo on ukcaving.com . Since it is a blog, anyone on expo can post their own reports so it is more convenient for most than the facebook, twitter and instagram accounts which are each under the control on one person at a time. The 2018 blog is particularly detailed and well illustrated.
Note that when writing a blog you need to use a permanent location, e.g. use instagram not Googledocs. All of Dan's photos on the 2019 blog have disappeared because he didn't realise this, so he had to post them all again.
Every year we try out new ways of organising ourselves: committee meeting minutes, recording decisions, organising transport etc.
We usually have a couple of Googledocs spreadsheets on the go, but details of how to get at these - and any other software tools we might find useful - will be distrributed via email and the expo mailing list.