Punchbowl - A party planning and greeting card website
EventTitans - Top rated event management software
Whoozin.com - Free RSVP Online | Track RSVP’s and Sell Tickets for your events and recurring meetings.
Tix - Tix is a state-of-the-art, cloud-based ticketing system that features fully integrated access controls, event management controls, multi-channel distribution capabilities, and a robust reporting suite.
JustRSVP.me - Online Invitations and response tracking for weddings, baby showers, birthdays, parties, and other...
Brushfire - Brushfire offers tools for online registration and event management.