The news media had a applause meter and Washington Post national politics reporter Amy Gardner indicated on Twitter:
@ AmyEGardner : Big standing O for Newt in Birmingham -- much rowdier reception than Santorum a few minutes ago.
1 hour ago
@ AmyEGardner : Newt just promised to find one trillion barrels of oil during his presidency.
1 hour ago
@ AmyEGardner : Newt wins the applause-o-meter at Birmingham prez forum (over Santorum).
Rick Santorum must have made it clear to everyone in Alabama and the rest of the states that he is a lawyer is paid to speak as long as possible (and while people are still conscious...)