Aggravated about paying for 411 calls that used to free? While waiting for connecting flights this morning, I stumbled onto this nifty money-saver:

A free consumer service offered in the United States by Jingle Networks via a toll-free number, 800-FREE-411 (800-373-3411).

This free network works much like directory assistance, with one exception: It's funded by advertising. Callers may hear a 13-second ad for a business in the region they're calling. And, the business or residence being called will hear a message about advertising with Free 411.

Based on a test of three calls by Snopes.com, the service worked as described and callers heard only one ad.