Anyone know where I can find a list of ALL of the facultys' emails?

My student org is hosting a huge event that seats a couple thousand people. I need the emails to send out invites and spread the word. Help me out?

Edit: Thanks for all the help, everyone! I'll proceed with caution.

And if anyone is a fan of Richard Dawkins, make sure you check out our event! http://richarddawkinssandiego.com/