Smartplanet.com has a good mix of tech/science/medicine news. However, this particular article (linked below) was disappointing. It referred to 0.1 ounces of saliva as being a very small amount useful for forensic investigation technique. I voiced my displeasure in the comments, but all that got me was a "correction" to a teaspoon equivalent.
http://www.smartplanet.com/blog/science-scope/your-spit-reveals-your-age-scientists-say/8830?tag=nl.e660 The author seemed to be receptive to my tirade, but she missed or ignored the point of the measurement system altogether. Maybe a few of you here could write her or the website itself to nudge them towards metric. They should have no excuses--given the subjects they cover, their audience is already familiar with the metric system. Remek