I had been thinking of adding in links shortened by ad.fly in the past in order to make some extra money from my hubs, but discovered that it was not allowed on Hubpages. Are there any other ways for me to add another revenue stream to my hubs?
Monetization of Hubs is offered by HP. As authors, we provide content and use their platform and existing services. HP explores options that are available out there so don't feel too badly. For now, I can only suggest maybe starting another website to use your ad.fly program, maybe with articles related to your HP and link them together. Just a thought.
You can help the HubPages community highlight top quality content by ranking this answer up or down.