Here's a casenote about the Elane Photography case, involving a professional photographer in New Mexico who was penalized for declining to photograph a same-sex commitment ceremony.
And here's an interesting article about the propriety of religious exemptions from generally applicable laws by Mark L. Pienzi, who is an attorney for Hobby Lobby in the contraception-mandate case
Hobby Lobby Stores, Inc. v. Sebelius.
http://www.harvardlawreview.org/media/pdf/vol127_rienzi.pdf