When evaluating a website ask yourself the following questions?
Is the author an authority or expert on the topic?
Does the author have an agenda? Are they trying to sell a product or advocate a position?
Does the author back up their argument with evidence?
Is the information current?
Blogs and twitter feeds are very good sources of information. They provide up to date and breaking news in a variety of fields. There are other sources as well that help stay current in Child Development.