After having spent roughly three hours going through every page of the particle adventure, I have to take my hat off to Michael Barnett and company at the Lawrence Berkeley Laboratories. They have managed to create an interesting and informative introduction to particle physics with much humor and virtually no math. The Standard Model is run through as thoroughly as a newcomer can possibly absorb in an inital dose. From leptons to hadrons, fermions to bosons, photons to gluons, all of the "major" particles are covered in this adventure. The four interactions (3!?) are also discussed plainly and clearly, as are particle decays and the machines that humanity has constructed to study them.
The multitude of usually funny cartoons keeps the mood decidedly upbeat. Things do occasionally get a little Sesame Street-like (I cite the ?mu-on Lion? and the ?tau tiger?) in an attempt to keep things lighthearted. I understand and appreciate the effort to keep things simple, but it could only improve the educational value of the site if more of the links offered some advanced coverage of the material--though I am sure that hand-waving is probably the only viable teaching technique available to the particle physicist at this level.
Reviewing this site for a junior level modern physics course at Humboldt State University, this is the first study of particle physics I have ever undertaken (apart from blazing through a copy of the "Tao of Physics"). I learned a lot from my paticle adventure, although some of the material covered will keep me scratching my head for a long time to come.
I found the site very easy to manage. I do wish there were a set of next/previous page buttons at the bottom of the pages so that I didn?t have to keep scrolling back to the top, but that is a minor point.