Generalities
References
Index to different kinds of reference sources linked from this site.
Fact Sources
Ask-A: Question and Answer Sources:
Interdisciplinary Sites:
Reference Desks
Collections of useful reference sources.
People
Communications
Language:
-
Dictionaries (All languages),
English language:
Dictionaries,
Abbreviations and Acronyms,
Grammar and Usage
Media:
Quotations
Directories:
- Postal Information
(Zip codes/postal codes, postage rates, delivery tracking),
Phone Books (including area codes),
E-mail Directories