As mentioned on SCaLE's website:
The premier Open Source conference in the U.S., now in its 9th year, will have content for everyone! If you're looking to learn, you can choose talks from the developer's track, the new sysadmin track, the beginner track, or the two general interest tracks.
If you're interested in chatting with the exhibitors, you'll be able to to wander the Expo floor, with over 80 booths of open source folks eager to talk to you.