This shall become a list of Bitcoin derived alternative cryptographic currencies that came up with technical innovation. In order of appearance.
Devcoin - DVC -
thread90% of generation goes to foundation.
It does not go to the foundation. There is not a foundation even. It goes out as share rewards to people that complete bounties.
Surprised this made the list for that.
The I2P support started as a patch for bitcoin.
There is also memorycoin, which has a vote/grant system.
There was Beer which was the first attempt to fix the value of a blockchain currency to a commodity.
Ixcoin isn't dead, I guess.
It's traded at Cryptsy and it's merge mined

Thanks. It's a zombie.

SC still processes transactions and is traded as well on mcxnow.