Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Paperless Post - Paperless Post is an online platform for creating custom card and invitations.
Ticket Tailor - Ticket Tailor is an easy-to-use event ticketing platform that allows event organizers of all shapes and sizes to sell tickets online.
Pingg - Pingg is an online e-cards and invitation maker and invitation sending platform.
Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.
Manvite - As the name of this service suggests, the users can avail easily and simply invite rather than online summons that are blessed with flowery fonts and dabbling champagne glasses.