I wanted to alert you to a new publication and an associated resource.  We just published a paper entitled: 

Brain-wide analysis of electrophysiological diversity yields novel categorization of mammalian neuron types in the Journal of Neurophysiology.

The paper is available at:   http://jn.physiology.org/content/jn/early/2015/03/20/jn.00237.2015.full.pdf

Also you might be interested in the associated web site:  

The paper describes an approach to collect, compile, validate and analyze data from thousands of published papers describing neurophysiological properties of many types of neurons.  

In addition to the analyses that we performed, we believe that the data contained in this dataset should be of interest to the broad neurophysiology and modeling community.  The data set also would benefit from scientists across the country and world providing feedback, proposing extensions, reporting errors etc. We appreciate any feedback or comments.

Best,

Nathan Urban - CMU

Shreejoy Tripathy - CMU/UBC

Shawn Burton - CMU

Matt Geramita - U Pittsburgh