To place an ad on UCSB’s Digiknow screens, you just need to go to their website: http://www.housing.ucsb.edu/digiknow/home
As a Student Organization it will cost $10/ad or, if you’re going to be doing more ads during the quarter, just $40/quarter for up to 3 ads/week. It’s also on the website. To submit an ad click on Submit in the upper right of the website. If you’re going to just do one ad, you will likely have to walk over to the Digiknow office with a check for $10 before the ad will run.