RSVP services

In addition to email, you may wish to use an RSVP service such as evite.com. It enables users to quickly reply to invitations, leave comments if they wish, and maintains the guest list in real time.

Blogs

Blogs can be an incredibly effective way to keep the group up to date about meetings and book selections. Members can vote on potential selections using the comment field, and of course organizers can post pictures as well.