I am developing a WordPress plugin and considering to distribute a free version of it as well. I just wonder if it is possible to bundle an ad banner to be displayed in users admin area in order to earn something out of it.
Google Adsense seems to require validation on domain ownership before it allows the ad to be placed. Does that mean it is not possible with google adsense? What other product / service may I choose from in this case?
Read more here: Bundling ad banner with free theme/plugin distribution