The below website has a good list of available nodes on the P2Pool network for Dogecoin. It automatically updates and tries to list the nodes that have the best connection.
http://p2pool.jir.dk/dogecoin/Or feel free to join me on my P2pool node that is hosted on the Amazon cloud
http://54.85.36.255:22550/static/Example: cgminer.exe -o 54.85.36.255:22550 -u YourDogecoinWalletAddress -p Anything