The follow currencies are now accepted on the Sterlingcoin webstore:

Sterlingcoin (SLG)
Bitcoin (BTC)
Litecoin (LTC)
Dogecoin (DOGE)
Darkcoin (DRK)
Guldencoin (NLG)
Feathercoin (FTC)
Worldcoin (WDC)
Paycoin (XPY)