In March, the Supreme Court will hear oral arguments in two appeals cases related to same-sex marriage -- California's Proposition 8, which bans same-sex marriage and the federal Defense of Marriage Act, which denies federal benefits to same-sex couples.

CNN: Washington National Cathedral to wed same-sex couples

In addition to upholding the ban and invalidating prohibitions everywhere, the justices could endorse an appeals court ruling that would make same-sex marriage legal in California but apply only to that state.

NPR: Calif. Gay Marriage Argument At High Court Tuesday

Two years after the bill was signed into law, lawyers and judicial experts are taking stock of the legislation, particularly as the 9th U.S. Circuit Court of Appeals recently weighed in on the Wal-Mart sex discrimination class-action case, ruling that several current and former employees can represent all women taking action against the company.

FORBES: Class-Action Law Gums Up Courts