I wrote a program that I am currently selling and it is making a little bit of money via paypal/CPALead to buy a subscription to use the program. I want to also make a free version that has ads embedded into the program. The ads would appear as follows: 1)One "leaderboard" type ad that is just under the menu of the program which will load when the program loads. The page the ad is on would have some description of the program and what it does but that text would not be visible to the user so I'm not 100% sure ad companies would be ok with that. 2) A web page would load up inside the program when it starts. The page would explain what the program does and why they are seeing these ads with links to the pages where they can buy the full version. 3) Another page similar to the one in #2 will have a "thank you for using this program" type of message, along with ads. This will load once the program has been used for about an hour. Is this permitted for all ad providers (especially adsense)? Any other good ways I can make money from a program I made? The market is potentially pretty big.