A few things to do while the live 24 hour webcastathon is taking place:

Listen Live: Listen live and contribute comments and questions in our online studio at: http://earthbridges.net/live
Guestbook: Fill out the listener/participant guestbook | 'Tiny URL' short link: http://tinyurl.com/earthcast2010guestbook
Photos: Contribute photos to the Earthcast 2010 Flickr Photo Pool | http://www.flickr.com/groups/earthcast2010/
Facebook: Fan our Facebook Fan Page at: http://facebook.com/earthcast
Twitter: Follow us on Twitter at: http://twitter.com/earthbridges