One of my readers emailed a link to the 50 Best Bartering Sites for the Frugal Student. It is posted on www.onlinecolleges.net so they refer the article to students, but I'm sure students of Frugal University are eligible to benefit from this collection of bargaining websites.
Some of the offerings are obvious, at least to me. Who hasn't heard of Craigslist or Freecycle? But there are some that were new to me and look really interesting. For example, Skills2Barter lets you trade your skills for someone else's. I'm imagining how cool it would be to trade my time (maybe cleaning or demo work?) for the time of a plumber or electrician, even if it isn't 1:1. Another one that looks promising is Favorpals, whose tagline is "Imagine a world where you can get anything you want by simply giving something in return." That would rock. Right now it's in beta, and a lot of the favors are spam-like (sign up on a penny auction site in exchange for free bids).
All in all this is a nice list of resources for the frugal minded.