Im running 5 sites and use the same code and banner for all fo the sites. Is this the correct way or should I be generating different codes for each site?
The codes are always the same for each of the different blocks/sizes. You can use them in all your sites as teh pub number is only one... the only time you will be having something with a twist is when you create a channel for the ad block or units which you can do when you are logged in your adsense account. I hope this is what you are looking for.. JulieV