I put together a WoW Archaeology guide. It is not complete yet and there are still some bugs in the current beta build, but I think the profession won't change that much from now. Between skill 1 and 150 you basically get nothing from this profession, you get grey artifacts which you can sell to the vendor for 5-30 silver. It took me 10 hours to reach 200 in Archaeology and all I got is one rare item so far. I hope they change the number of junk items, because at lower level this profession is almost useless. update - made a few changes in the guide, mostly just layout changes so it's easier to read.