... or have all of the great facebook apps already been made?

The revenue must be CPM, not CPC, right? I rarely if ever click on ads in Facebook.

I reckon they're all already made myself, but maybe someone who's more int eh know than me could comment? I get the impression that Facebook isn't the opportunity that it once was.

I fail to see how any of the applications can make any money ... I've been on Facebook for a while now and haven't once clicked on an ad, and though I did enjoy a few of the applications early on, I'm just bored of them now and delete the invitations.

People say affiliate offers convert well on facebook so ads in applications should be paying well...

P.S revenue tends to be CPM...

I think its all in your target audience.

Yeah, the audience does matter.