An explanation of the physics behind the 'Eurostar' paper
Jon has written a great explanation of the physics behind the 'Eurostar' paper for non-specialists.
A History of Particle Physics
A brief history of the development of Particle Physics.
http://durpdg.dur.ac.uk/lbl/particleadventure/other/history/index.html
The Fundamentals of Matter
A good overview of what we know so far about the fundamentals of matter.
http://durpdg.dur.ac.uk/lbl/particleadventure/index.html
The Higgs Boson
The Higgs is notoriously difficult to visualise. Here are some alternative explanations which might help.
http://www.phy.uct.ac.za/courses/phy400w/particle/higgs.htm
Jet substructure as a new Higgs search channel at the Large Hadron Collider
If you've read all of the above, maybe you're now ready to tackle the 'Eurostar' paper itself.
http://arxiv.org/abs/0810.0409
CERN
CERN’s official website, which includes news, resources and lots of useful information.
http://public.web.cern.ch/public/
The ATLAS Experiment
The website for the ATLAS experiment at the LHC.
http://atlas.ch/
Particle Collider simulator
A fun website which allows you to play with the buttons and knobs at the LHC.
http://www.particledetectives.net/html/main.html
The Large Hadron Rap
Brilliant in so many ways..