One way of increasing traffic to your site is to get people telling others about it. Therefore, it might be worth a shot to target at least some of your content towards the sharing types. But who are the sharing types?
I was thinking along the lines of "sharing" being social media. However, it could also include forums and maybe even email.
Next, I tried searching for info about who is most likely to share but I've not found anything particularly useful yet. In any case, if it turns out that the most likely to share are kids sharing cute pet pics, then I'm not wanting that kind of traffic anyway.
I guess I need to know who shares what and why, and from there select the possibilities which could be monetised.