Let's hope that this thread becomes a useful FAQ of sorts for incoming noobs!
I've just noticed a few more things that I can't figure out.
My newly constructed bridges are blinking. No idea why.
My craftdwarf shop has CI.T next to its name when I select it. No idea why.
I couldn't seem to find clay to mine, as I have never seen it before, as I haven't really mined all that much, so I've been buying the stuff from caravans. I've set the stockpile where the clay is sitting in as a clay zone, and I've selected a kiln and set it to Collect Clay, but it's still telling me that I need an active clay collection zone. Did I just waste money on buying clay?
Okay, I just found that I can't used skeletons for bone armors. What good are the skeletons, anyway?
On a totally non-question related sidenote:
I haven't found metal yet, so I'm still buying pickaxes and equipment from merchants. The only thing I need to do is find out where to get hard rocks to make swords out of, and I can start up a weapons industry. So far, I've devoted less than 10% of my entire fort to dedicated military duty of any kind, about 4 warriors. I have them set to equip anything they can find, which is a hell of alot better than before. Fighting a sasquatch with 10 guys on full fisticuffs has forced me to dedicate personnel to military duty. So far, I haven't figured out what the hell half of the workshops do, and I'm still buying all of my arrows from merchants. Dear GOD, why aren't there tooltips...