I regularly monitor and leave comments on one conservative blog, Tigerhawk, that periodically posts "information" suggesting climate change isn't a problem. The main blogger there says he's not a denialist, but he reposts claims from WattsUpWithThat and other nonsense sites that support the denialist position. I can't keep up with WattsUp but this gives me a chance to respond to claims that are sufficiently appealing to those types of folks that they're spreading around the blogosphere.
Anyway, I think it's a good idea to adopt blogs like TH. Dedicated denialist blogs like WattsUp are useless - no factual knowledge will influence them, but blogs like TH that only occasionally attack climate actions are more likely to change their focus away from climate when they see their sources get refuted. It might help that in TH's case, the main blogger is actually respectful of critical commenters, so maybe it would be hard to find similar conservative blogs. But it might be worth checking out.