If you need to learn Oracle UCM as fast as it humanly possible, this may be the best article you ever read. My recent UCM review, published by CMS Wire, walks you through the major features in just a few short minutes. So you can literally learn it on your lunch break, and still have enough time left to grab a meal.
Check out the article here
P.S. if you're a seasoned UCM professional, I'll give you another reason to still check it out - just look at these comments... Ouch! You gotta see them!