Example Online Services
- CARL
- Chemical Abstracts Service
- Dun & Bradstreet
- Dow Jones News/Retrieval
- Institute for Scientific Information (ISI)
- Knight-Ridder Information Inc.
- LEGI-SLATE
- LEXIS-NEXIS
- NewsNet
- OCLC
- Ovid Technologies, Inc.
- Profound/M.A.I.D.
- PsycINFO
- Reuters
- Responsive Database Services
- Questel*Orbit
- SilverPlatter Information
- UMI