I own a legitimate pharmaceutical site that provides an array of information about an upcoming drug that is currently undergoing FDA Phase III Clinical Trials. It's not one of those spammy websites that tries to sell anything. It's just informative.

Anyway, it's currently ranking 3rd (behind wikipedia and an article in time) for the drug's name and is receiving a great amount of traffic - that is quickly and steadily increasing. The problem is that AdBrite doesn't seem to be utilizing the traffic well and it's making me very little money! So my question is:

How can I best monetize a site like this?