On June 10, protesters gathered on Market St. in San Francisco to protest Apple's use of Digital Rights Management, the restrictions placed by Apple on music purchased at iTunes. The protest was part of a nationwide day of action against Apple's use of DRM.
Photos & Video | Event Announcement | Video: Protest in front of Apple store Chicago | Google Video From SF Protest: here

DRM Technology can restricts users’ access to movies, music, literature and software, indeed all forms of digital data. DefectiveByDesign.org is a broad-based anti-DRM campaign that is targeting Big Media, unhelpful manufacturers and DRM distributors. The campaign aims to make all manufacturers wary about bringing their DRM-enabled products to market. DRM products have features built-in that restrict what jobs they can do. These products have been intentionally crippled from the users' perspective, and are therefore "defective by design". This campaign will identify these “defective” products, and target them for elimination. The campaign's aim is the abolition of DRM as a social practice.
EFF: DRM | DRM and Privacy | French protest proposed DRM law | Google Video Of French Protest | Wikipedia: Digital Rights Management