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).
Have you seen
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.