Where to find logarithmic graph of Bitcoin over time? I'd like to find a logarithmic graph of the value of BTC vs the simple USD/time graph. Any suggestions of where to find that? 

Thank you!
not sure what you mean by logarithmic graph. The time in a logarithmic scale, or the value? On both, there is a "log" button below the graph. And you can export as CSV or JSON:

https://blockchain.info/de/charts/market-price?timespan=all

or alternativly:

https://coinmarketcap.com/currencies/bitcoin/