My trip was interesting in that I went a month earlier than most people do. Also I went alone. Along the way I dealt with bears, an earthquake, snow and mosquitos. During the 3 week trip I cumulatively climbed 47,000 ft. nearly 1.5 times as high as Mt. Everest.
Here's a trail journal where you can see how the trip went.
Here's a Flickr page where I posted all of my photos.
Here is a video of the bear that I saw in Yosemite Park
Here is a video of the evil marmot at Guitar Lake
Here is my entire gear list online via Google Spreadsheets.
Also, here is my rough itinerary online via Google Calendar.
Download a series of waypoints for Google Earth that shows many points along the trail..
I have a large selection of John Muir Trail related links related to my planning the trip.