The latest patent attack is against podcasters. A patent holder is claiming that any distribution of episodic content requires a patent license and is now enforcing that against podcasters. I can tell you from experience that podcasting is something you do for love, not money. If producing a podcast starts meaning you are going to have to deal with patent litigation, a lot of good podcasts will go away.
If you enjoy podcasts, please skip your next meal out and contribute to the EFF. I just contributed quite a bit more than a meal.