Yesterday activists with Greenpeace launched a banner-deploying blimp at the international headquarters of Hewlett-Packard in Palo Alto, California. Supplementing this action was a microradio station broadcasting on 91.3 FM, which told nearby listeners to “contact HP CEO Mark Hurd” about the company’s use of toxic chemicals in its products, when safer alternative raw materials abound. It’s nice to see the onsite action-based broadcast model is alive and well.