| Field | Life |
| Went Obsolete | 1994, but some didn't realize that until around 2002 |
| Made Obsolete By | Al Gore / The internets |
| Knowledge Assumed | How to use a web browser and Altavista (later Google) |
| When useful | When internet is down |
Using a physical book which lists companies according to branch in a certain area to find the business you are looking for.