Somehow I can't edit this post anymore so I'll put latest online seed-node in this comment. As for today (07-26-2016) Online seed-node list:

seed-node = 212.117.213.186:2016
seed-node = seed.riversteem.com:2001
seed-node = 52.74.152.79:2001
seed-node = 52.63.172.229:2001
seed-node = 104.236.82.250:2001
seed-node = steemd.pharesim.me:2001
seed-node = seed.steemnodes.com:2001
seed-node = seed.steemed.net:2001
seed-node = steem-seed1.abit-more.com:2001
seed-node = steem.clawmap.com:2001
seed-node = 52.62.24.225:2001
seed-node = steem-id.altexplorer.xyz:2001
seed-node = 213.167.243.223:2001
seed-node = seed.steemd.com:34191
seed-node = 46.252.27.1:1337
seed-node = anyx.co:2001
seed-node = seed.cubeconnex.com:2001
seed-node = 212.47.249.84:40696
seed-node = 104.199.157.70:2001
seed-node = 45.55.217.111:12150
seed-node = 81.89.101.133:2001