Public directories that can be accessed online on the internet.

1. Whitepages.com
2. Yellowpages.com
3. Yelp.com
4. 411.com
5. Superpages.com
6. Anywho.com
7. Spokeo.com
8. Zabasearch.com
9. Peoplefinders.com
10. Intelius.com

Business Directories:

- Yelp: Business listings with reviews and ratings
- Google My Business: Business profiles and contact information
- Angie's List: Verified service providers with reviews
- LinkedIn Company Directory: Profiles of companies and their employees
- Houzz: Directory for home improvement and design professionals

Social Media Directories:

- Facebook Business Directory: Pages for businesses on Facebook
- Twitter Business Directory: Business accounts on Twitter
- Instagram Business Directory: Businesses on Instagram
- Pinterest Business Directory: Businesses on Pinterest
- TikTok Business Directory: Businesses on TikTok

Government Directories:

- USA.gov: Official U.S. government directory
- IRS Business Directory: Database of businesses registered with the IRS
- SEC EDGAR: Database of publicly traded companies
- Patent and Trademark Office: Directory of patents and trademarks
- State Business Directories: Websites of state governments listing businesses

Industry-Specific Directories:

- Doctor Finder (American Medical Association): Directory of physicians
- American Bar Association Directory: Listing of lawyers and law firms
- National Association of Realtors: Directory of real estate agents
- Society of Automotive Engineers: Directory of engineers in the automotive industry
- American Institute of Architects: Directory of registered architects

Miscellaneous Directories:

- Whitepages: Directory of residential and business phone numbers
- Radaris: Public records search engine
- Spokeo: People search engine
- Pipl: People search engine
- Archive.org: Archive of web pages and other online content