I'm familiar with these websites. In my study, their information is often bias and inaccurate. Pro-choice websites have the same issues. They each only focus on data that supports their conclusion. That's not a rational or honest way to study an issue. If you go to a website that proudly proclaims to favor pro-life causes, as these four sites do, you won't get a very balanced argument. Their intent is to endorse a cause. Being right doesn't factor into the equation. And for an issue about abortion, I would much rather make sure that I'm right before I start endorsing a side.