Some DuckDuckCoin services not yet listed in the OP:

Block Explorer: http://altexplorer.net/chain/DuckDuckCoin

Block Explorer API: https://bitcointalk.org/index.php?topic=448221.msg5079179#msg5079179

Exchange: https://coin-swap.net/market/DUCK/

Web-based IRC Chat: https://webchat.freenode.net/. Use channel #duckduckcoin

Faucet: http://coindrop.io/?utm_source=bitcointalk&utm_medium=forum&utm_campaign=post1