Top 10 Reasons to use Twitter for Events

It does not cost a thing!
It can help grow attendees to your event.
It will expand the life and reach of your Event by tweeting before, during and after.
You can find and acquire more passionate followers looking for people and asking them to follow you.
You can stay up-to-date on other industry events by following industry thought leaders.
You can monitor what your attendees are saying about your event so you can make necessary changes to make your event better.
You can host twitter chats to engage with and acquire more attendees. I think www.tweetchat.com is a great resource.
You can handle attendee support related issues right away. Service your audience quickly and effectively.
You can find your event advocates and cultivate them!
You can promote your event to new and existing attendees.

Add me @mmcallen