I dunno. While the idea of making your dwarfs able to produce better things, or the same things faster appeals to me, I can't say the concept of traditional "research" appeals to me. Particularly if you compare it to reality. See the biggest leaps in knowledge and invention AREN'T a slow and steady progression set down by consistent careful work. Knowledge is most advanced when someone(usually quite, quite insane) individually or in a very small group(rarely more than 5) figures something out, frequently in the middle of stressful times.
I mean Einstein was said to go into rages from which he emerged just knowing things, Tesla is THE stereotypical mad scientist, even Newton just basically went to a farm locked himself up then emerged a while later with a Masterwork Principia.
If we ARE to have research I would move to have it "accidental". Basically any given strange mood that completes successfully has a chance (I would say the more complex the artifact the greater the chance) to alter the game in some fashion, either by making the...whatever it is that was made usable by dwarves(as suggested above), by decreasing the time needed to make the whatever-it-is(suggested by a diffrent method somewhere else) or to permanently bump up all hereafter made whatever-it-is'es by one quality level(maxing at masterwork of course.)
So an artifact stone mug that successfully counts as "research complete" could make stone mugs usable (...somehow. Maybe as a bludgeoning weapon(gogo improvised drunken brawl weapons)) or it could make all stone-mugs complete a little bit faster OR from here on out all stone mugs would be created one quality level better(so basic stone mugs could never be created)
Also: Toady TOTALLY needs to add something like Warcraft voice clips. I always wonder wtf happened when I suddenly have 50+ idle dwarfs, and spend forever looking for threats, blocked paths etc. It invariably turns out to be the same thing: I have run out of lumber, now my carpenters, crafters, bowyers, burners, smelters, smiths, soapers and god only knows how many wood-fetcher peasants just stand around till my legendary wood-cutter deforests a quarter of the map. What's worse is while they're waiting they frequently have parties, weddings, adopt pets, and clutter up my fortress with useless babies.