Zen Cart contribution which would help you export easy your products into Froogle.com engine - one of the most popular free product catalog.

We strongly recommend that you use Google Base data feed because of recent changes to Froogle

Some of the important benefits of listing in Froogle are:

Google's worldwide user base performs more than 150 million searches a day.
Inclusion in Froogle is absolutely free.
Advertising in Froogle is cost effective. Listing your products in Froogle is a MUST-DO free way to market to thousands of customers.
Each feed includes product details such as name, description, photo, URL and price.