Courses and Lecture Notes in Number Theory:Compiled by Keith Matthews.A Collection of Lecture Notes: Various topics by Franz Lemmermeyer.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.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.Elementary and Algebraic Number Theory: Course Notes by Ivan Fesenko, University of Nottingham. PS, PDF.Elementary and Analytic Number Theory: Lecture notes by William Chen, used at Imperial College, University of London (PDF).Elementary Number Theory: Lecture notes by Michael Filaseta, University of South Carolina, Fall 1997 (PS).Elementary Number Theory: Lecture notes by Nigel Byott, University of Exeter (DVI,PDF,PS).Expositions and Notes: Topics in Sieve Theory and Combinatorial Number Theory. Ben Green, University of Bristol.Introductory Number Theory: Lecture Notes by Don Rideout, Memorial University of Newfoundland. PDF and Maple worksheets.Lecture Notes by John Cosgrave: Courses in Number Theory at St Patrick's College, Dublin.Math Courses at UIC: Course handouts, lesson plans, and other resources compiled by Dan Bernstein.Notes on Elementary Number Theory: By Bruce Ikenaga, Millersville University (PS).Paul Garrett's Lecture Notes: With exercises and course material. Topics include Algebraic Number Theory; Automorphic (Modular) Forms, Representations, L-functions.Topics in Combinatorial Number Theory: Lecture notes by Van Vu, UCSD (PDF).Using Mathematica in a Course on Number Theory: By Kenneth Kramer, Queens College (CUNY). Abstract with text in PDF.