Top 20 domain name sales in 2014 using “Social” keyword as a prefix.
Here they are, enjoy!

socialwifi.com 10000 USD
socialdesktop.com 9875 USD
social-media.de 7750 EUR
socialact.com 7500 USD
socialcon.com 7000 USD
socialdock.com 5500 USD
socialangel.com 5000 USD
socialmediaplan.com 4000 USD
socialdistributionnetwork.com 3875 USD
socialight.com 3100 USD
socialforum.com 3020 USD
socialsensor.com 3000 USD
socialleagues.com 2000 USD
socialwomen.com 2000 USD
socialvideomarketing.de 1964 EUR
socialmodeling.com 1595 USD
socialpresence.net 1377 USD
socialmedia.io 1350 USD
socialfanshq.com 1302 USD
socialnative.com 1288 USD