What are the alternatives to Facebook/Meetup for Event Planning [closed]

Question

I'm looking for an online webapp to manage event planning.

Here's the list of ideal requirements I'm looking for:

• To be able to propagate invitations to friends through either email and/or social network(s)
• Can export a specific event entry in vCalendar format
• Exposes an external API to retrieve a feed of events for a specific user/group
• Displays a link to an RSS/Atom feed of events for a specific user/group
• Displays a list of people who are invited and their status (attending/maybe/not)
• Has a description field for the event
• Has attached comments

Bonus:

• Includes a rating for specific events
• Includes a photo/video gallery or a way to link to an external gallery (Flickr/Youtube).
• OpenID login

Note: To preserve cleanliness please only put one option per answer.

Answer 1

We always use www.doodle.com to manage our meetings. It's specially helpful to find a time/date slot that fits everybody. Give it a try.

I'm in their Outlook Connector Beta Program, with that, my outlook calendar is always in sync with it.

And here the individual points:
To be able to propagate invitations to friends through either email and/or social network(s)
=> via email
Can export a specific event entry in vCalendar format
=> yep
Exposes an external API to retrieve a feed of events for a specific user/group
=> Yes, they have an API, but couldn't find it now.
Displays a link to an RSS/Atom feed of events for a specific user/group
=> no idea, but there is a subscribe link Displays a list of people who are invited and their status (attending/maybe/not)
=> Absolutely
Has a description field for the event
=> Yes
Has attached comments
=> Yes

Answer 2

There's also amiando which I've used when registering for a few events. (This is also what they used for StackOverflow DevDays.) As a user (someone registering for the event) it was fine. Not sure on features but I've only seen it used for paid events.

Answer 3

I use eventbrite for managing meetings/events (mostly user groups) and have been very happy with it. It does everything in your ideal requirements except allow leaving comments.

Answer 4

I really like anyvite.com for invitations

Answer 5

I haven't seen any mentions of Evite yet, but it should handle at least a few of your requirements.

Answer 6

We use Fasterplan (http://www.fasterplan.com/), which is much like a simple WIKI. Widgets can be added to a billboard which is identified by a unique URL. Participants can be invited by simply forwarding that URL via E-Mail or Facebook or whatever, or they can be directly invited from the billboard (in this case Fasterplan sends the E-Mail, you can leave a personalized message). There are three kinds of widgets:

• formatted text widget: usually used to describe an event, make tables, etc.
• polls: others can propose new options or delete existing if the admin allows them to
• calendars: used to find a common date. again, new dates can be proposed or existing dates deleted if the admin gives permission to do so.

Participants can comment on each widget individually (which keeps the comments organized). The administrator (the one who creates the billboard and starts the organization) has to be signed-up, but any other participant can take part without being signed-up to Fasterplan, even without leaving his/her e-mail-address.