My friend Luke has just unveiled a new web site called StumbleUpon Exchange.

If you’re not familiar with StumbleUpon, it’s a toolbar for your web browser that allows you to rate web sites and to also view web sites which other StumbleUpon members have rated.

As a visitor, StumbleUpon can provide you with almost endless amusement as you are taken to web sites which you would not otherwise be able to find. As a webmaster, StumbleUpon can be an incredibly effective tool for building web traffic.

StumbleUpon Exchange is a web site where webmasters can trade “Stumbles” with each other, which will result in increased traffic to both web sites.

The Tech FAQ receives thousands of visitors from StumbleUpon every month. In fact, we receive more visitors from StumbleUpon than from more well-known sources like Digg or Slashdot.

If you’re a webmaster, I recommend that you check out Luke’s new site.