The War on Easter
They've been having folks leaflet churches around the country and when possible hide copies of the movie, The God Who Wasn't There in the pews or on the church grounds. It copies the tactics of many evangelicals in spreading the word, which is why in the end the effort will only serve to alienate people.
As with much of the other efforts by atheists, they concentrate most of their criticism towards fundamentalists.
The film itself is a criticism of fundamentalism, with a mix of some scholars which doubt the existence of Jesus historically. Such a view point, is rare in NT scholarship, though such a debate doesn't have as much bearing on the Christian religion as some might imagine.
Sometimes I wonder if the most vocal atheists are people who grew up in conservative Christian churches. Just like the most vocal opponents of Adventism are those who once were members. It would explain why they have a complete lack of familiarity with other Christian thought. For example much of the arguments on the Skeptics Annotated Bible website assumes that all Christians believe scripture to be inerrant. In reality the percentage of Christians who believe that doctrine are fairly small. I find the arguments presented on the SAB to be unpersuasive, but it is a handy reference in certain cases. Of course the counter arguments are just as unpersuasive, because they also assume that the Bible is inerrant.