For those interested in current developments with RDA (that's AACR3 to you), Ann Chapman has a nice article in the current issue of Ariadne.
William Denton mentions it and remarks on Ann's title: Interoperability Focus Officer.
Ann works at UKOLN. Brian Kelly also works at UKOLN. His title is UK Web Focus, a post he has occupied with distinction for ten years. And he has recently started a blog which will repay attention for all interested in the application of web technologies.
Ann and Brian's posts, and UKOLN more generally, are examples of the central investment made by national organizations in advisory and support services in the UK library and education sectors.
Full disclosure: I worked for UKOLN, at the University of Bath, for many years.