Jim Forsyth at Reuters offered good coverage of Rick Perry signing the NOM Marriage Pledge:
Texas Governor and Republican presidential contender Rick Perry has signed a pledge vowing to support a Constitutional amendment declaring marriage to be a union of one man and one woman, the group sponsoring the pledge said on Friday.
"Kudos to Governor Rick Perry for making it clear: he's a marriage champion," National Organization for Marriage president Brian Brown said in a statement.
...The pledge also includes a vow to support the Defense of Marriage Act in court, appoint judges and an Attorney General who will respect "the original meaning of the Constitution," and appoint a presidential commission to investigate harassment of "traditional marriage" supporters.
Michelle Bachmann, Mitt Romney and Rick Santorum, among those competing with Perry for Republican presidential nomination, have also signed the pledge, the group said.
Here's even more coverage by mainstream media: