I do not vouch for the accuracy of any of these and the truth is that anybody, including a government agency, can have an axe to grind. I'm just posting a few sites about fats that typical people who visit this forum are concerned about--I found these informative and interesting, and I feel like a lot of my fat questions have been answered now. Enjoy.
In-depth breakdowns to the molecular level of different types/chain lengths of fats--no so much geared toward diet as it is toward understanding chemical content and reactions w/enzymes (including the under-rated danger of trans fats). http://www.scientificpsychic.com/fitness/fattyacids.html