Bit Coin Data for Econ Research

[Eric81]

Hi:

I have created a historical data resource for bitcoin:  http://www.quandl.com/markets/bitcoin

It contains historical bitcoin values in multiple currencies as well as time series data on various other aspects of bitcoin.  It is amalgamated from a number of other web sites.  The idea here is to get the data in one place and make the data easy to work with.

I am looking for general feedback and specifically:  I would like to know if there is another relevant bitcoin data I should include.

thanks
Eric

[DrGregMulhauser]

Seeing the "Bitcoin Market Capitalization" described instead as the Bitcoin monetary base expressed in USD could make a nice improvement.