Since September 11, 2014, the pool supports merged mining of Dogecoin and other cryptocurrencies, resulting in higher payouts than with a regular Litecoin pool.
We are currently merged-mining Argentum, Canada eCoin, Dogecoin, Huntercoin, Myriad, Pesetacoin, Viacoin.
Any other coins you're merge mining now?
That list is up to date. (If you check the original post, you'll see it was updated just a couple weeks ago.)