Other sources of information about Macaulay 2

Web sites

http://www.math.uiuc.edu/Macaulay2/ -- the main Macaulay 2 web site: citations, binary distributions
http://sf.net/projects/macaulay2/ -- the Sourceforge Macaulay 2 web site: source code, bug reporting

Computations in algebraic geometry with Macaulay 2, Algorithms and Computations in Mathematics, no. 8, edited by David Eisenbud, Daniel R. Grayson, Michael E. Stillman, and Bernd Sturmfels, Springer-Verlag, 2001, ISBN 3-540-42230-7.
Computational Algebraic Geometry, London Mathematical Society Student Texts (No. 58), by Hal Schenck, ISBN-13: 9780521536509, ISBN-10: 0521536502, 2003, 208 pages.