http://www.hoovers.com
2. Companies Online
http://www.CompaniesOnline.com
3. Thomas Register
http://www.thomasregister.com
4. BizWeb
http://www.bizweb.com
5. Dow Jones Business Direcotry
http://www.dowjones.com
6. CompanyFinder.Com
http://www.companyfinder.com
7. Pronet
http://www.pronet.ca
8. Web 100
http://www.w100.com
9. ComFind
http://www.comfind.com
10. MonsterBook
http://www.monsterbook.com