Lecture Notes by John Cosgrave
- Courses in Number Theory at St Patrick's College, Dublin.
- http://services.spd.dcu.ie/johnbcos/Courses.htm

Notes on Elementary Number Theory
- By Bruce Ikenaga, Millersville University (PS).
- http://marauder.millersville.edu/~bikenaga/numth/numnote.html

Math Courses at UIC
- Course handouts, lesson plans, and other resources compiled by Dan Bernstein.
- http://cr.yp.to/courses.html

A Collection of Lecture Notes
- Various topics by Franz Lemmermeyer.
- http://www.fen.bilkent.edu.tr/~franz/LN.html

Elementary Number Theory
- Lecture notes by Nigel Byott, University of Exeter (DVI,PDF,PS).
- http://www.maths.ex.ac.uk/~NPByott/teaching/oldNT.html

Elementary and Analytic Number Theory
- Lecture notes by William Chen, used at Imperial College, University of London (PDF).
- http://www.maths.mq.edu.au/~wchen/lndpnfolder/lndpn.html

Course Notes by Jim Milne
- Algebraic number theory, Class field theory, Algebraic Geometry, Elliptic Curves, Modular functions and forms, Abelian varieties, Etale Cohomology. TeX, DVI, PS and PDF.
- http://www.jmilne.org/math/

Using Mathematica in a Course on Number Theory
- By Kenneth Kramer, Queens College (CUNY). Abstract with text in PDF.
- http://archives.math.utk.edu/ICTCM/abs/10-P9.html

A Self-learning Package in Elementary Number Theory
- By Yui-Kin Ng, King-Shun Leung and Yiu-Kwong Man: Hong Kong Institute of Education. Report on the design and implementation.
- http://www.ied.edu.hk/has/webauth/stec98/ngyk/

Paul Garrett's Lecture Notes
- With exercises and course material. Topics include Algebraic Number Theory; Automorphic (Modular) Forms, Representations, L-functions.
- http://www.math.umn.edu/~garrett/m/

Introductory Number Theory
- Lecture Notes by Don Rideout, Memorial University of Newfoundland. PDF and Maple worksheets.
- http://www.math.mun.ca/~drideout/

Elementary and Algebraic Number Theory
- Course Notes by Ivan Fesenko, University of Nottingham. PS, PDF.
- http://www.maths.nott.ac.uk/personal/ibf/courses.html