One of my other blogs will soon begin featuring an advertisement from an outdoor equipment distributor. I did not pursue this opportunity, but was contacted by them.
I'm not going to list particulars yet... it all seems to be a done deal, but I haven't received the code or any money yet.
However, I am going to make the point that it takes time to build a blog reputation. This blog has been live for two years and has earned a PR3. Success takes time.