EFF said Tuesday it was organizing companies that face threats from patent trolls – a derogatory term for companies that earn most of their money from patent licensing or litigation.

"Another day, another patent troll," EFF said. "Or so it seems."

There's one alleged troll that's drawing the ire of EFF: Personal Audio, which says it invented the technology that enables podcasting.

Personal Audio said recently it was suing ACE Broadcasting Network, HowStuffWorks.com, and TogiEntertainment for allegedly infringing its "podcasting patent."