I pay ~$8 a year for the domain and the hosting is for multiple sites so I think it cost me less than $1 for hosting per month.
If that was my only expenses then I made profit but now I cycling my profit back into advertising so no profit anymore.

I'm hope the adds will have a good ROI.
The truth is I don't expect to make much until the next PR update and I will probably spend more than I make in the next few months to make sure I get some good PR on the update. A bit of a risk cause I have a feeling directories are going to get smashed in the next update (i hope not).