| Internet searching | Hotbot | Yahoo | AltaVista | InfoSeek | Excite | Lycos | LookSmart | GoTo.com | |
| Publishers | Elsevier | Marcel Dekker | Institute of Physics Publishing | |
| Chemicals and equipment | Avanti Lipids | BDH Laboratory Supplies | Cole-Parmer | Sigma-Aldrich | Varian | |
| University | Warsaw University, Department of Chemistry | Warmia and Masuria University in Olsztyn | |
| Data bases | Medline | |
| Electronics | Amplicon Liveline | International Crystal Manufacturing | JM Electronik | Dallas Semiconductor | Electron Tubes Limited | Matsushita | |
| Computers and equipment | Epson | Helwett Packard | |
| Utilities | Poczta polska | Europe - train time table | ¬ródła historyczne | |