1. ThomasNet
ThomasNet.com, is the most comprehensive resource for finding information on suppliers of industrial products and services in North America.

2. MacRAE'S Blue Book
Buyers' guide to the products of over 120,000 manufacturers and distributors.
www.macraesbluebook.com

3. Bizjournals.com
Business news from 41 local markets and 46 industries.
www.bizjournals.com

4. W.W. Grainger
Wholesale distributor of industrial supplies, equipment, and repair parts. Includes a branch locator and online ordering. (NYSE: GWW).
www.grainger.com

5. GlobalSpec.com
Searchable engineering catalogs, thousands of products from hundreds of suppliers.
www.globalspec.com