Can This Website be Profitable?

[quantikev]

Hello community.

For some time, I have been working on making my various websites profitable. One of my more recent projects is this one (it has undergone 2 revisions).

Unfortunately, it has suffered a similar fate as the others - much traffic (which according to my stats spends considerable time at the site) but no sales.

From what I can tell it is possible to make websites like this profitable, so I must be doing something wrong.

Therefore, I would appreciate your telling me how I am wrong!

Thanks a lot..