Since your website is like viral nova, you are a perfect fit for Facebook group and Facebook fan page marketing.
If I were you, I would specialize in a particular niche, find groups and pages within that niche and then just share my content.
You might want to play around with finding tricks to link your photo.
So come up with really interesting photos that grab a lot of variables and then link them directly to your blog.
If done right, not only will your content get shared a lot and boost your overall traffic levels but also convert quite a bit of your visitors because of the direct traffic feed to your blog.
I wish you nothing but the best.