Thanks to a nudge from the ALSC Blog, I found a fascinating discussion on the Storytime Underground site (no longer available) about libraries celebrating mainstream holidays, making libraries inclusive places for everyone, thinking about assumptions and privilege, and communication with all members of the community.  There are lots of important things to think about, expressed very eloquently and incisively by some smart colleagues around North America.  I highly encourage you to take a look, and be sure to read the comments!