How does the man suggest advertising?

W: What do you think would be a good way to advertise our new product, the local paper or the radio?
M: We tried both before, but the resuIts were not very good compared to how much they cost. I thought we could try advertising online this time around.(65)I heard the cost was very minimal and the resuIts far exceed other forms of advertisement nowadays.(66)It actually costs about 1/10 of television ads yet produces similar resuIts.
W: Yes, I heard something about that as well. I think it’s worth a try. Why don’t you look into it and get back to me soon?
M: I’ll go and speak to a friend of mine who works in the field.(67)He’s the one who mentioned it to me a while back.