Reading only the introduction of "A Crash Course in the Neuroscience of Human Motivation" (which incidentially is by lukeprog) reveals that it's a very special case and additionally an experiment of a long post.

And while "Your Inner Google" is interesting and insightful it is criticised for being too short in a much upvoted comment: http://lesswrong.com/lw/7mx/your_inner_google/4u6t

This doesn't say that you can't do such posts - but you should really consider the reasons for doing so.