NMR Basics by Joseph P. Hornak at the Rochester Institute of Technology
is probably the best place to start
http://www.cis.rit.edu/htbooks/nmr/inside.htm

¹H NMR Interactive tutorial [you need Shockwave] from the University of Alberta
by Paul B. Tiege, Elisa S. Murguly, Sylvie Garneau, Helen M. Mah, Tom Hawkins, and Lois M. Browne
http://www.chem.ualberta.ca/~orglabs/spectroscopy/HnmrDirectPage.html
http://www.chem.ualberta.ca/~orglabs/spectroscopy/hnmr/HNMRmain.html
takes a while for each section to download, but it's worth it!!

NMR at Widener University by Scott Van Bramer has problems to solve
http://science.widener.edu/svb/nmr/nmr.html

Spectroscopic Tools von Steffen Thomas bei der Universität Potsdam
Has "wizards" for IR, ¹H-NMR, MS, and a ¹³C-NMR database
http://www.chem.uni-potsdam.de/tools/index.html

NMR Spectroscopy by Neil Glagovich at Central Connecticut State University
http://www.chemistry.ccsu.edu/glagovich/teaching/316/index.html > NMR
http://www.chemistry.ccsu.edu/glagovich/teaching/472/nmr/nmr.html

¹H NMR Spectra of Small Molecules (32 of them) by John Nash at Purdue University
http://www.chem.purdue.edu/gchelp/nmr/index.html
has Chime structures, points out proton equivalences, predicts the spectrum, then displays it interactively
with the origin of each peak and the H's coupled to it.

Chem 240C Organic Structure Analysis by Phil Crews at UCSC is much more advanced
than what we need, but there are definitely choice tidbits here and links to other sites
http://chemistry.ucsc.edu/teaching/Spring02/Chem240C/

WebSpectra by Craig A. Merlic and Barry C. Fam at UCLA has loads of spectral problems
http://www.chem.ucla.edu/~webspectra/index.html

Organic Structure Elucidation by Bradley D Smith, Bill Boggess, and Jaroslav Zajicek
at the University of Notre Dame has 64 problems with IR, ¹H NMR, ¹³C NMR, and mass spec
http://www.nd.edu/~smithgrp/structure/workbook.html

Organic Chemistry OnLine by Paul R. Young at the University of Illinois at Chicago
has a Basic Proton and C-13 NMR tutorial with problems
http://www.chem.uic.edu/web1/OCOL-II/WIN/SPEC.HTM
http://chipo.chem.uic.edu/web1/ocol/spec/NMR.htm

Patty Feist's excellent Spectroscopy site at the University of Colorado
has NMR and IR covered together, organized by functional groups
http://orgchem.colorado.edu/hndbksupport/spect.html

¹H NMR Interpretation tutorial by Yue-Ling Wong and S. Bruce King at Wake Forest University
http://www.wfu.edu/~ylwong/chem/nmr/h1/
has neat Shockwave™ predict-a-spectrum and other good stuff

NMR Explorer by George Wiger at CSU Dominguez Hills
http://chemistry2.csudh.edu/newstuff/startnmrexplorer.html
you can practice assigning peaks in a spectrum to the H's in the given structure;
the other two exercise choices didn't work too well on 10/14/02

¹³C NMR tutorial by Yue-Ling Wong and S. Bruce King at Wake Forest University
http://www.wfu.edu/~ylwong/nmr/c13/

NMR Spectroscopy. Principles and Application
by Henry Rzepa at Imperial College of Science, Technology, and Medicine, London
http://www.ch.ic.ac.uk/local/organic/nmr.html
thorough, but probably a bit too theoretical for our current purposes

PowerPoint on ¹H-NMR by Ed Blackburn at the University of Alberta
http://www.fsj.ualberta.ca/chimie/chem161/sNMR_files/frame.htm
Included for completeness; I didn't find it as useful as the other sites above.

Spectral Zoo by Jennifer Muzyka at Centre College
http://web.centre.edu/muzyka/organic/organic.htm > Spectral Zoo v2
http://web.centre.edu/muzyka/organic/table/index.htm
spectral problems: unknowns with molecular formula, IR, ¹H-NMR
starts out with simple problems, progresses to more difficult ones