I set up a poll on the r/podcasting community on Reddit to try and find out how many podcasters have, or are considering, sponsoring another podcast ( in order to grow their audience base).
According to the poll only around 8% have tested out sponsoring another podcast. And around 35% are considering it.
I find it interesting that not more podcasters are doing this, as it seems like an easy, and relatively cheap way, to grow your audience.
See the poll here on Reddit: