P2Pool is doing very well now, generating blocks regularly, from officially updated pools list here, this nodes are ok:

http://p2pool.name:9566 (fee)
http://solidpool.org:9566 (fee)
http://taken.pl:9566 (fee)
http://lovok.no-ip.com:9566 (fee)

avoid:

http://p2pool-eu.gotgeeks.com:9566 (last seen on old network, new wallet, days offline)
http://p2pool-us.gotgeeks.com:9566 (last seen on old network, new wallet, days offline)
http://rav3n.dtdns.net:9566 (still old network, new wallet)
http://p2pool.org (not in list here, old network, unknown wallet)

typical config for mining on p2pool:
cgminer --scrypt -Q 0 -o stratum+tcp://<MEOW p2pool node address>:9566 -u <your MEOW wallet address> -p x