1. General

1. Cambridge online dictionary
2. CANadian Survey Equipment Ltd. ( Cansel)
3. Converting different file formats to each other.
4. Fortran, a free compiler for windows
5. Free books from Samizdat
6. Glossary of mathematical terms
7. Latex: the Comprehensive TeX Archieve Network ( CTAN)
8. Latex help
9. Latex hints
10. Latex pacakges, style files, tools and drawing/graphics
11. Physics Encyclopedia
    
12. Units: definition, dimension, conversion
13. USNO (US Naval Observatory) master clock