Twestival is a great Twitter success story.

“Nice video Tac, but what is it?” From the site:

Twestival Local events are taking place in cities around the world between 10-13 September 2009. If you would like to attend an event, volunteer or contribute, please find your city for more details. Twestival is an international movement where people meet offline for one night, have fun and do some good for an important cause in the process. Twestival Local gives cities an opportunity to select a local cause to support.

It’s fun and serves a great cause. Each location picks a charity to support. You can find out if there’s a Twestival in your location on their interweb landing page.

Seattle Twestival 9/12/09

This Saturday is Seattle’s Twestival event and they have chosen YouthCare as their charity recipient.

If you live in the Seattle area, you need to be there. If you don’t live in Seattle find out if your city (or nearby location) is sponsoring one. If it’s not, start planning now to hold one in your city next year (I’m looking at you Boise)!

Need more info?

Who:
Seattle’s top Twitter personalities, social media enthusiasts and humanitarians.

What:
Hundreds of Seattle’s top social media practitioners will converge at Spitfire for a night of offline socializing, networking, trivia, karaoke and other activities. All money raised at the event will benefit YouthCare, a local nonprofit dedicated to helping homeless and underserved young people.

Twestival Seattle is part of a larger international effort to combine networking, social media and charity. Twestival will take place in more than 200 cities worldwide, with each city choosing a local charity to support.

When:
Saturday, Sept. 12, 7–midnight PDT

Where:
Spitfire (2219 4th Ave., Seattle, WA 98121)

Tickets:
http://www.amiando.com/TwestivalSEA_YouthCare.html

Twitter hashtag:
Follow the conversation by monitoring #twtsea on Twitter. Tweets with the #twtsea hashtag will be shown in real time on displays throughout the venue.