The Center for Democracy and Technolgy (CDT) filed an amicus brief (PDF) in the Supreme Court on February 10 in the Children’s Internet Protection Act (CIPA) case, supporting the lower court decision (210 F. Supp 2d 401) overturning the requirement that federally funded libraries must filter Internet access to patrons.
See also the library of briefs related to this CIPA case maintained by the American Library Association on their CIPA webpage, and this press release: ALA files Supreme Court response to government documents.