Member details could not be online for privacy reasons. However a list could be emailed to all every time there is a change. It would always be up-to-date. It could include email addresses as well.
Details of who you are playing with for the year could be kept on a downloadable form (hard copies available for those without computers). This form could also be emailed to the Club so that Peter knows who to ring when looking for partners and it wouldn't matter if you lost your bridge book! What do you think?