In this tight economy, bartering is making a major comeback.

Bartering Web sites and online bartering clubs are popping up on the Internet like cheapskates showing up for triple-coupon day at the supermarket. Craigslist reports that classified ads for bartered items posted on the Web site are among the fastest-growing listings since the recession started.

By swapping goods and services instead of paying for them, more and more people are getting what they need without ever opening their wallets.

What's more, bartering Web sites are evolving. Cropping up are several that specialize in specific types of items, such as used books PaperBackSwap.com