Physics
American Physical Society	http://www.aps.org
Quantum Imaging Laboratory	http://www.bu.edu/qil
GAP-Optique Universit&eacute	http://www.gap-optique.unige.ch/
Physics 219 Course Information	http://www.theory.caltech.edu/people/preskill/ph229/
Quantum Physics authors/titles recent submissions	http://xxx.lanl.gov/list/quant-ph/recent
Quantum Mechanics-I 811	 http://www.phys.ksu.edu/~wysin/QM-I/index.html
Quantum Mechanics-II 911	 http://www.phys.ksu.edu/~wysin/QM-II/index.html
Jackson Electrodynamics	 http://www.airynothing.com/jackson/
Jackson's Classical Electrodynamics	http://www-personal.engin.umich.edu/%7Elynchb/jackson/
COOL SCIENCE insanely great science websites	http://www.eskimo.com/~billb/amateur/coolsci.html
Photonic Band Gap and Photonic Crystal Links	http://www.pbglink.com/
Optical Physics and Quantum Electronics Lecture Notes	http://people.deas.harvard.edu/~jones/ap216/lectures/lectures.html
Quantum Optics and Atomic Optics Links	http://www.physics.mq.edu.au/~drice/quoptics.html
Peter Dunsby's Physics Courses List	http://vishnu.mth.uct.ac.za/~peter/phys-courses.html
Electromagnetic Field Theory Internet Textbook	http://www.plasma.uu.se/CED/Book/
Physics 151 Lecture Notes	      http://icg.harvard.edu/~phys151/lectures/
PY105 Lecture Notes	     http://physics.bu.edu/~duffy/py105/Notes.html
PY106 Lecture Notes	     http://physics.bu.edu/py106/Notes.html
EM Text for MIT Course 6.013	http://web.mit.edu/6.013_book/www/book.html
Physics 172: Introductory Solid State Physics	http://www.stanford.edu/group/Fisher/teaching/Ph172/Ph172.html
PY741 Lecture Notes	  http://physics.bu.edu/~neto/class.ps
Light and Matter Online Physics Text	http://www.lightandmatter.com/area1.html
Physics Forums	 http://physicsforums.com/
physicsforfree.com	http://www.physicsforfree.com/
Solid State Physics II Lectures Notes	http://www.nottingham.ac.uk/~ppzblg/solidstate.htm
MIT OpenCourseWare	http://ocw.mit.edu/OcwWeb/index.htm
Princeton Physics 103 Learning Guide	http://pupgg.princeton.edu/~phys103/guides.html
NCN Notes	  http://www.inac.purdue.edu/wps/portal/_s.155/1133
HyperPhysics	  http://hyperphysics.phy-astr.gsu.edu/hbase/hph.html
The Elegant Universe (Nova)	http://www.pbs.org/wgbh/nova/elegant/program.html
List of Constants (NIST)	http://physics.nist.gov/cuu

Mathematics
Mathematics authors/titles recent submissions	http://xxx.lanl.gov/list/math/recent
The Integrator	http://www.integrals.com
Geometrical Concepts in Physics	http://www.physics.ucf.edu/~costas/Courses/GeoConPhys
Lecture Notes on General Relativity	http://pancake.uchicago.edu/~carroll/notes/
Differential Geometry	 http://www.wisdom.weizmann.ac.il/~yakov/Geometry/
Differential Geometry and Physics	http://people.uncw.edu/lugo/COURSES/DiffGeom/dg1.htm
Online Books and Lecture Notes in Mathematics	http://www.gotmath.com/notes.html
Mathematical Methods for Physicists 801	http://www.phys.ksu.edu/~wysin/MathMethods/index.htm
Calculus-Help.com	 http://www.calculus-help.com/
The Math Forum Home Page	http://mathforum.org/

Music
chord house ::: chords and scales for guitar and piano	http://www.looknohands.com/chordhouse/
DMBTABS.com - Accurate Dave Matthews Band Tabulature	http://www.dmbtabs.com/
WholeNote - The Online Guitar Community	  http://www.wholenote.com/
The Harry Connick Jr. Fan Site	http://www.connick.com
Billy Joel	  http://www.billyjoel.com
Jack Johnson Guitar Tabs and More	http://www.stanford.edu/~reedg/guitartab.html
Howie Day	    http://www.howieday.com

Computers / Technology
Mars Exploration Rover Mission	http://marsrovers.jpl.nasa.gov/home/
Project Gutenberg eBooks	http://www.gutenberg.net/index.shtml
Slashdot: News for nerds, stuff that matters	http://www.slashdot.org
freshmeat.net	http://www.freshmeat.net
Sourceforge.net	http://www.sourceforge.net
The Linux Documentation Project	http://www.linuxdoc.org
Tom's Hardware Guide	http://www.tomshardware.com
AnandTech	http://www.anandtech.com/
CNET.com	http://www.cnet.com
labs.google.com - Google Demos	http://labs.google.com
Kevin Murphy's Matlab Software	http://www.ai.mit.edu/~murphyk/Software/
matlab mode for emacs	 http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=104&objectType=FILE

Funny / Stupid
Escape!	http://www.nystocktrader.com/Dodge.htm
statemedia . home	http://www.statemedia.net/
The Official Ninja Webpage: REAL Ultimate Power!!!	http://www.realultimatepower.net
The Best Page In The Universe	 http://maddox.xmission.com
The Onion | America's Finest News Source?	http://www.theonion.com/
Dilbert.com	http://www.dilbert.com
You Kicked My Dog	http://www.funnyjunk.com/pages/mydog.htm
Homestarrunner	http://www.homestarrunner.com/
Darwinian Poetry	http://www.codeasart.com/poetry/darwin.html
Origami Boulder Company	http://www.origamiboulder.com/
MuffinFilms	http://www.muffinfilms.com
Optical Illusions	http://www.ritsumei.ac.jp/~akitaoka/index-e.html

Friends' Sites
Dander! - Writing	http://ehren.mit.edu/
Potato Riot Productions	http://www.potatoriot.com/index.shtml
Warning: do not name your Special It these danger names!!	http://www.geocities.com/nameit64/main.html
All That You Cant Leave Behind	  http://www.clarkson.edu/~dhaliwsk/links.html

Other
The Assayer: Book Reviews & Discussion	http://theassayer.org/
BookFinder.com	  http://www.bookfinder.com/