David Connolly and Maggie Struckmeier of British Archaeological Jobs Resource (BAJR) fame, also run a website called Past Horizons. It highlights opportunities for amateur or professional archaeologists to participate in projects around the globe. It’s a great website, with project listings, forums for those who want to talk to others about their experiences abroad, a blog (where David and Maggie make themselves very approachable if you have a question), and now, an online magazine.
You can read Past Horizons either on Scribd or via the rather fancy full-screen digipage version, which even curls the page as you turn it, complete with playable videos. It’s well worth checking out.