Swartz v. Does, No. 08C431 (Tenn. Dist. Ct., Davidson County  filed Feb. 11, 2008).
Status: Court ruled to identify anonymous posters (Oct. 8, 2009).

Donald and Terry Keller Swartz sued the anonymous blogger behind the Stop Swartz blog, which criticized the couple and solicited similar comments from readers, for libel and invasion of privacy. The Swatrzes subpeoned Google to learn the identity of the blogger, and in October 2009 the court denied the blogger's motion to quash the subpoena.

Links and Court Documents:
Swartz v. Does (Citizen Media Law Project)
Swartz v. Does: Tennessee Court Says Couple Entitled to Unmask Anonymous Blogger (Citizen Media Law Project)
Nashville couple sues blog, claims defamation (Nashville Tennessean)