[ - ] Go social - more social - Interact with members or other people in social networks.
Make them realize that - since you dont run a solo website - that some manager of it cares about members and possible new members and provide them with the proper support.
"As Gary Vaynerchuck shares in his book The Thank You Economy?which aims to define the impact of social media on our lives and behavior?this radical shift in our economy ?requires that business leaders start thinking like small-town shop owners.? Why? Because social media takes word of mouth marketing to a bigger stage."
http://thenextweb.com/socialmedia/20...turn-job-perk/
[ - ] Add unscheduled content to website from time to time;
[ - ] Give away some renewals random or to the member who shared the most on of your particular post on FB or Twitter.
Btw marketing isn't advertising.
Is making the usar beleive that he will get more than he is paying for - and has proud to pay for it -