• Evite.com
  Makes it easy to arrange events and parties
  Free online invitations, free ecards, birthday invitations, party invitations, birthday ecards, party ideas -- Evite has everything you need to throw a great party.
  baby birthday ecards free ideas invitations party shower themes
  in cool web services with calendar invitations organization party personal by 18 users
• Online Invitations, party planning and event management
  Default invite styles are classic photos not cartoon-y. Features automatic reminders/tracking by email, sms, post and onto Facebook
  in cool web services with event invitation organisation party by 2 users
• Event Wax | Web-Based Event Organization Lubrication
  "The easier, smarter way to organize special events, from conferences and workshops to parties, gigs, and receptions." (Lots of 'pro' features - really more aimed at large scale gatherings than social occaisions)
  in cool web services with events invitation organization party by 3 users
• Party Central - ECHOage
  Does invitations that benefit charities too
  in children with invitation party
• Punchbowl (was Socializr)
  Lots of designs mainly for kids - no polling without premium level
  Send free online invitations, plan parties, and share events with your friends with Socializr
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  in cool web services with events invitation organisation party us by 7 users
• Renkoo
  Lets you work out party details in (their) chat tool or via IM or SMS (not clear if SMS would work outside the US).
  in cool web services with invitations meeting party tool tools web2

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