Guests: Cliff McMurray, Bart Leahy. Topics: ISDC 2011 Conference, space advocacy, space policy, space networking. Please note that you are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blog, http://thespaceshow.wordpress.com. Comments, questions, and any discussion must be relevant and applicable to Space Show programming. We welcomed both Cliff McMurray and Bart Leahy to the program to discuss the 2011 ISDC Conference to be held in Huntsville, AL May 18-22, 2011.