The National Journal has this quick summary  of where the fight for marriage equality stands across the country, along with an interactive map that highlights how the push to expand rights is predominating the landscape.
In a sign of changing times, the fight over marriage rights is now overwhelmingly being waged by activists who favor same-sex marriage, rather than those working to restrict marriage to heterosexual couples. A decade after 11 states passed constitutional bans on same-sex marriage thanks to a coordinated effort by supporters of President Bush to boost his numbers, only two states—Indiana and Wyoming—are currently pursuing limitations to the marriage rights of same-sex couples. Meanwhile, efforts are underway in 24 states to expand them.
In North Carolina, that push is playing out in federal court in Greensboro in Fisher-Borne v. Smith, the case in which several families who originally filed a complaint concerning second parent adoption have added a challenge to the state’s voter-approved constitutional amendment banning same-sex marriage.