[JURIST] A broad-based group of booksellers, websites, and Internet service providers filed suit in federal court [complaint, PDF] in Utah Thursday, challenging a Utah law [ACLU press release] that calls for the state attorney general to create a list of websites "harmful to minors" and requires ISPs to provide customers with ways to block them. Utah Attorney General Mark Shurtleff [official website] has halted implementation [Salt Lake Tribune report] of the law in anticipation of this suit. Laws targeting explicit web sites have already been previously overturned [CNET report] in several states, and a Pennsylvania law targeting ISPs similar to Utah's law was overturned [CNET report; PDF opinion] in September 2004. CNET has more.