I have created a mailing list with Yahoo Groups. To join the list email firstname.lastname@example.org, from the email account you wish to subscribe. Your request will be sent to me and I will usually approve it within 24 hours. The approval process helps to prevent spammers from joining the list and broadcasting via it.
I will post notification of important website changes to the list, ie when results have been posted and also provide directions to venues in the week leading up to the event.