ASTD has a free downloadable whitepaper on communicating the value of learning in difficult economic times. It's written primarily from the perspective of corporate training; however, there are enough nuggets for the association educator to make it worthwhile to download and read the 24 pages.
On a similar note, join the ASAE & The Center's Professional Development Section to discuss "Providing Superior Programs in a Cruddy Economy" on Wednesday, June 3, from 12:00-1:00 p.m. Eastern. This is a free, peer-to-peer learning discussion. Advance registration is not needed; I'll post the call-in information when it is made available.