Here are a few ideas for those wanting further reading on cross cultural issues:

Wikipedia's introduction to the Cross Cultural concept is useful source of definitions and links.

Hofstede, Trompenaars and E.G.Hall are still as relevant and thought provoking as ever.

For those trying to make a business case for cross cultural competency try this fantastic discussion forum -

Blame the Bugs: An interesting recent article on why some societies evolve as individualist and some as collectivist.