List of Linear Algebra References
http://en.wikipedia.org/wiki/List_of_linear_algebra_references
There is also a wiki book that, however, appears to be rather incomplete.
Keith Matthews, University of Queensland, Brisbane, Australia
Elementary Linear Algebra
http://www.numbertheory.org/book/
Jim Hefferon, St. Michael's College, Colchester, VT
Linear Algebra
http://joshua.smcvt.edu/linalg.html/index.html
Laudatory review:
http://www.randomhacks.net/articles/2007/03/07/hefferon-linear-algebra-review
Robert A. Beezer, University of Puget Sound, Tacoma, WA
A First Course in Linear Algebra
http://linear.ups.edu/
Gilbert Strang, MIT, Cambridge, MA
from MIT Open Courseware
http://ocw.mit.edu/OcwWeb/Mathematics/18-06Spring-2005/VideoLectures/index.htm
This goes beyond the scope of second undergraduate year linear algebra.
Edwin H. Connell, University of Miami, Coral Gables, FL
Elements of Abstract and Linear Algebra
http://www.math.miami.edu/~ec/book/