I've been reading that you can't choose to have CPM ads display on your site. Instead, an advertiser has to choose to display CPM ads on your site. Is this true? Do they specifically choose your site? Or do advertisers choose to post CPM ads and then does Google place them wherever they feel relevant as with normal Adsense ads? Also, I believe Google will see how CPM ads compare to PPC ads and display the ads with the highest return, right?
Yep, it's true. I strongly suggest signing up for an Adwords account. That will clear up many doubts.
Interesting. It seems Vonage has turned my golf forum into Golf Rewind by Vonage. Not that I'm complaining. I could get used to it.