If I point out that Drupal's taxonomy system – its amazing, flexible, powerful, wonderful taxonomy system – can be confusing, I'll only be about the eleven thousandth Drupalnik to do so. The thing is, though, the system is not that confusing; it's just the language that messes people up.

Categories, taxonomies, vocabularies, terms. One sees a couple other words, like classification, tossed into the mix at times too.

Taxonomy now!

If you want to get up to speed on what's called what, start here:

In case you don't know the phrase "Chinese Fire Drill", it's an American (?) name for a silly game played in a car full of people: everyone jumps out when the car stops, runs to a different door, and jumps back in. (I guess you have to play to appreciate it.)

Sure, Drupal offers teasers for nodes. In fact, there are three ways that I know of to handle them:

1) Write normally, and let your "Length of trimmed posts:" setting (under Post settings) automatically trim off a teaser at the specified number of characters.

2) Toss a "<!--break-->" tag into your post, at the point where you want to break off the end of the teaser.

3) Use the Node Teaser module to insert a custom teaser field into your nodes.