Profitable things to do on the Moon

There's a short article here about ideas for early profit from going to the Moon. Nothing too exciting yet.

I seem to recall that some years ago there was a proposal for privately funding a lunar rover to be operated remoting by paying customers on earth. Sounded cool to me.

Whoever does it, they really need to get some robotic exploration of interesting areas on the moon going. The lunar poles, and areas with possible lava tubes, are where I would be headed first.