Volume 3, Issue 1 of ACM Transactions on Accessible Computing Contents: 1. Introduction to the Special Issue on AAC 2. Conception and Experimentation of a Communication Device with Adaptive Scanning 3. The Effect of Voice Output on AAC-Supported Conversations of Persons with Alzheimer's Disease 4. Evaluating the STANDUP Pun Generating Software with Children with Cerebral Palsy 5. User Interaction with Word Prediction: The Effects of Prediction Quality Online at: http://portal.acm.org/toc.cfm?id=1497302&idx=J1156&type=issue&coll=ACM&dl=ACM&part=transaction&WantType=Journals&title=ACM%20Transactions%20on%20Accessible%20Computing%20(TACCESS)&CFID=25103503&CFTOKEN=44022236