I just ran across some lovely blog posts by Andrea Lythgoe at Science & Sensibility (a research blog from Lamaze International) on finding and evaluating research.
She wrote a series on Tracking Down Studies, and is currently continuing her series on Becoming a Critical Reader (the post at the top of the page is the latest, so you probably want to read the articles in order from bottom to top).
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I’m looking forward to the next installment! If you ever need to look for and read research articles, these two series can be either an introduction or a great refresher on the subject.