The government argues that, in providing Internet access, public libraries do not create a public forum, since public libraries may reserve the right to exclude certain speakers from availing themselves of the forum. Accordingly, the government contends that public libraries’ restrictions on patrons’ Internet access are subject only to rational basis review. Plaintiffs respond that the government’s ability to restrict speech on its own property, as in the case of restrictions on Internet access in public libraries, is not unlimited, and that the more widely the state facilitates the dissemination of private speech in a given forum, the more vulnerable the state’s decision is to restrict access to speech in that forum. We agree with the plaintiffs that public libraries’ content-based restrictions on their patrons’ Internet access are subject to strict scrutiny. In providing even filtered Internet access, public libraries create a public forum open to any speaker around the world to communicate with library patrons via the Internet on a virtually unlimited number of topics. Where the state provides access to a “vast democratic forum[],” Reno v. ACLU, 521 U.S. 844, 868 (1997), open to any member of the public to speak on subjects “as diverse as human thought,” id. at 870 (internal quotation marks and citation omitted), the state’s decision selectively to exclude from the forum speech whose content the state disfavors is subject to strict scrutiny, as such exclusions risk distorting the marketplace of ideas that the state has facilitated. Application of strict scrutiny finds further support in the extent to which public libraries’ provision of Internet access uniquely promotes First Amendment values in a manner analogous to traditional public fora such as streets, sidewalks, and parks, in which content-based restrictions are always subject to strict scrutiny.