Finite Rank Torsion Free Modules over Dedekind Domains - An unfinished book by Lee Lady. Elements of Abstract and Linear Algebra, by Edwin H. Connell - Full online book on abstract algebra with emphasis on linear algebra. Format: DVI, PDF, PS and gzipped-PS. Arxiv: AC Commutative Algebra - Articles cover commutative rings, modules, ideals, homological algebra, computational aspects, invariant theory, connections to algebraic geometry and combinatorics. The Book of Involutions - By M-A. Knus, A. Merkurjev, M. Rost, J-P. Tignol (Preface by J. Tits). AMS Colloquium Publications, Vol. 44 (1998). Table of contents, bibliography, index, errata, reviews. Abstract Algebra - Course notes by J.S. Milne. Topics covered are group, fields and Galois, algebraic number, class field theories. Other areas discussed are modular functions and forms, elliptic curves, algebraic geometry, Etale Cohomology, and Abelian varieties. In HTML, PDF, PostScript and DVI formats. Abstract Algebra - Lecture notes by David Wilkins at Trinity College, Dublin. Abstract Algebra - "Intro to Abstract Algebra" by Paul Garrett in PostScript and PDF. Abstract Algebra - Three books by Robert B. Ash (chapters in PDF): Abstract Algebra: The Basic Graduate Year, A Course In Algebraic Number Theory, and A Course In Commutative Algebra. Algebra Notes - Roy Smith's course notes in linear algebra, elementary abstract algebra, basic graduate algebra, and a survey of the Riemann-Roch theorem from Riemann to Hirzebruch. Algebraic K-theory - "An introduction to algebraic K-theory" by Charles Weibel. Chapters in DVI. Universal Algebra - "A Course in Universal Algebra" by Stanley Burris and H. P. Sankappanavar. PostScript and PDF. Abstract Algebra with GAP - A laboratory manual by J. G. Rainbolt and J. A. Gallian.