What can I do to programmatically get statistics such as current Bitcoin difficulty, Bitcoin award per block, USD/BTC exchange rate?
You can get...
- difficulty from: http://blockexplorer.com/q/getdifficulty
- reward per block from: http://blockexplorer.com/q/bcperblock
- exchange rate from: http://api.bitcoincharts.com/v1/weighted_prices.json
You might want to read this.
See list of other bitcoin stats here.