I had an idea for how to advertise. Create a proposal via the Decentralized Hive Fund that people can vote to provide funding for. I'm sure there is some way that a bot could then use that HIVE to purchase Google Ad space (or any other advertising network). The bot would buy exactly as much advertising space as it has funding for.

I may look into implementing this, but it would require me to learn a whole new set of technical skills. If someone beats me to it, more power to them.