WhereToMine.com (WTM) mashes up data from a number of sources, including coinchoose.com, cryptsy.com and bitcoincharts.com. It includes data points such as difficulty, and the coin reward per block. But it has some other functions, including a sparkline showing the historical profitability of a particular coin compared to Bitcoin.

Of particular interest is the built-in calculator, which takes hash rate inputs for both the SHA–256 algorithm underpinning Bitcoin (and derivatives such as Freicoin), and the alternative Scrypt algorithm, used by Litecoin, Feathercoin and others. Entering your hash rate calculates the likely coins per day that you can expect for each alt-currency, along with the equivalent fiat currency value on a daily, weekly and monthly basis.

Other calculation sites will often offer more detailed data, such as rates of return on hardware investments and offsets for power consumption. However, these are generally dedicated to particular coins. This aggregated site offers a quick and easy view across a range of alt-currencies, leaving users to make their own adjustments for extra environmental data.

www.wheretomine.com
"This page is designed to give you a good indication on which type of cryptocoin (Infinitecoin) to mine with your equipment hashing speed.
Here's how to use the calculator: Select your Currency, enter in your hashrate for bitcoin and/or scrypt mining, then click the calculate button.
This page will show your estimated earnings for each type of coin. " http://www.coindesk.com/wheretomine-highlights-rich-deposits/