GOOG Sep 18 2009, 05:20 PM EDT 491.46 Change % Change -0.26 -0.05% YHOO Sep 18 2009, 05:20 PM EDT 17.39 Change % Change -0.11 -0.63% The conventional wisdom is that firms should avoid cutting back on research and development in a downturn whenever possible. According to paidContent, Google (GOOG) and Yahoo (YHOO) aren’t following [...]