The following are some ways that you can gather guest lists:
1. Website Forms
Customised for your website or Guestlist requirements
See - How do I accept guestlists from my website
2. Facebook
Facebook Applications allow you to gather Guestlists from fans without then having to leave the fan page.
See - How do I build and manage Facebook applications?
Also see How do I accept guestlists from my Facebook page?
3. Promoters
Promoters that you have added can make Guestlists for you via their pr.MyGuestlist website.
See - How do I add a promoter?
4. SMS promotions
You can send promotions or special events via SMS that patrons can reply to for attendance.
See - How do I send out an SMS campaign?
Also see How do I accept replies and monitor them?
3. Email
You can email with an event out so that patrons know to send an RSVP or to create Guestlists for that event.