Thanks to the good folk at LM_Net, I recently learned about a wonderful blog called "The CommonCraft Show". Once you scroll down the page, you'll see links to various videos including:
These brief videos do a great job of getting to the gist of the topic, and as the title says, in plain English. If you're curious about any of these topics, but don't have the first clue where to start, take a look at these videos.
Thanks for the great info CommonCraft!