There are many way to promote dating site.But here i define some good way to promote a dating website. 1.Care to buy a top level domain name 2.Find reliable and fast hosting provide for your site 3.Make your site load fast 4.Create wise cross link structure 5.Static page do best 6.Decide what keyword you are going to target and promote your website 7.Submit your site to major directory like yahoo,Dmoz 8.Exchange linking with dating website 9.Make your contact easily available and mange your website everyday.
Like any other website, you have to find your niche, your USP and then find suitable keywords through keyword research. And then use those to on / off page optimization so that your target audience can find you easily. Social media can also play a vital role here. For example, FaceBook can be very good platform for you to reach your target audience, if backed by a proper strategy. You can go for a suitably crafted viral marketing also, using say YouTube.
try social media marketing and advertising to create awareness among people about your site. Then you will be getting more traffic
i think social media is the best way to promote dating website ... Use Facebook, Twitter ETC.. definitely you will get nice response....