user4676: I'm looking for historical exchange rate data for Bitcoins/USD beginning in 2010, but I haven't been successful. This is for academic research. I tried bitchart.org. I don't know how to access the MtGox API either. 
Can you help me with a step-by-step procedure to download the data in CSV format (or any other format)? It would be awesome if you could just provide me with the actual data file.

user153: 
http://www.coindesk.com/price
http://www.investing.com/currencies/btc-usd-historical-data
http://www.quandl.com/c/markets/bitcoin-data
https://bitcoinchain.com/markets

Also, there was a Bitcoin Time Series spreadsheet.  Scroll to the bottom to see the data sources.

4676: <p>I'm looking for historical exchange rate data for Bitcoins/USD beginning in 2010, but I haven't been successful. This is for academic research. I tried bitchart.org. I don't know how to access the MtGox API either. </p>

<p>Can you help me with a step-by-step procedure to download the data in CSV format (or any other format)? It would be awesome if you could just provide me with the actual data file.</p>
 153: <ul>
<li><a href="http://www.coindesk.com/price" rel="nofollow">http://www.coindesk.com/price</a></li>
<li><a href="http://www.investing.com/currencies/btc-usd-historical-data" rel="nofollow">http://www.investing.com/currencies/btc-usd-historical-data</a></li>
<li><a href="http://www.quandl.com/c/markets/bitcoin-data" rel="nofollow">http://www.quandl.com/c/markets/bitcoin-data</a></li>
<li><a href="https://bitcoinchain.com/markets" rel="nofollow">https://bitcoinchain.com/markets</a></li>
</ul>

<p>Also, there was a <a href="https://docs.google.com/spreadsheet/ccc?key=0AmcTCtjBoRWUdHJuUE1mUkFxa3A0eHBDQkxZLVVFZmc" rel="nofollow">Bitcoin Time Series spreadsheet</a>.  Scroll to the bottom to see the data sources.</p>
