The indomitable Ned Flaherty over at Marriage Equality USA has compiled a great list of all the marriage equality lawsuits proceeding across the USA:
Alaska On 24 September 2012, in Deborah Harris v. Alaska, Lambda Legal filed suit because Alaska denies survivor benefits to same-gender couples.
Arkansas On 2 July 2013, in Kendall Wright et al. v. AR Governor Michael Beebe et al., 11 same-gender couples filed suit in a Pulaski County court to overturn the AR ban on same-gender civil marriage as unconstitutional, in the same way that, in 2002, the AR Supreme Court overturned the AR anti-sodomy law as unconstitutional.
Arizona On 20 July 2010, in Joseph Diaz, et al., v. Janice Brewer, et al., a federal judge barred enforcement of an AZ law that would withhold health benefits from LGBT employees, their partners, and children. On 6 September 2011, the 9th Circuit U.S. Court of Appeals agreed. On 2 July 2012, AZ asked the U.S. Supreme Court to review the case. On 27 June 2013, the U.S. Supreme Court declined to hear Arizona’s appeal of a preliminary injunction suspending the voter-approved benefits ban, so the benefits will remain in effect while the case proceeds in the 9th Circuit.
See the rest at the link above – go, Ned, go!