The list has been a little quiet here lately, but some of you might be
interested in the following paper:
Aidan Hogan, J�rgen Umbrich, Andreas Harth, Richard Cyganiak, Axel
Polleres, Stefan Decker
"An empirical survey of Linked Data conformance"
Journal of Web Semantics 2012 (to appear).
http://sw.deri.org/~aidanh/docs/ldstudy12.pdf
http://www.sciencedirect.com/science/article/pii/S1570826812000352?v=s5
/flagrant-self-promotion
Cheers,
Aidan