A great source of the latest in nutrition research
NutritionFacts.org is my favourite site when it comes to keeping up to date with latest discoveries in nutritional and medical science. Basically, Michael Greger, M.D plows through the vast amounts of studies and reports that get's published each year in scientific journals, and summarizes the findings in short easy to watch videos on the page.
Here's the man himself giving a description of the site and explaining why he does what he does.
There's also a blog section where he addresses members questions thoroughly, even though he'll problably answer almost any question in the comment section on each video.
And here's an example video for you, so you'll get a taste for the format