I currently donate to the Alliance Defense Fund (ADF), the American Center for Law and Justice (ACLJ), and the Thomas More Law Center (TMLC). I would encourge everyone to support one or more of these fine organizations as they are working to oppose the ACLU. Sign up for their newsletters so you can keep up with the work they are doing.
The Thomas More Center is a great organization. I had the opportunity of speaking with one of its reps a few years ago, and a sharper, more enthusiastic, upbeat guy I've never met. Absolutely brilliant man. Wish I could remember his name.