Sounds like you already have a pretty good diversification of channels to extend your reach, so you need to focus on optimizing key channels and continually improve conversions. Some ideas:
At which point is your funnel failing?
You are doing so many promotional activities, and from your post, it almost sounds like you are struggling to bring the right "volume" of people.
Is that the problem or is the conversion the problem?
Hi Dave, There are few recommendation from my end.
1. At the first look it need have some feel like it is dating and social site. Some mick and Donald pic.
2. Let you all to show users photo and when they click you can ask for registration.
3. Full search is really good. Let you have two sort of search. Basic and advance. Let you allow all users to search and for more details they can go for registration.
MyLeadSystem Pro (http://bit.ly/2ijNnyN)
Your list is your best friend.