Fedak sent me a bunch o’ hiking-related links for my “essentials” series the other day. All commentary is his:

These are more peak bagging sites, but since most peaks have an
approach hike these often double as hiking guides.

Snow Nymph’s Picture Gallery

The largest and the best of the online CA photo albums. (Puts my feeble collection of trip reports to shame)

Bob Burd’s Sierra Travels:

*The* reference guide to scrambling(non-technical climbing) in northern CA. Bob also organizes the Sierra Challange each summer and runs the Sierra Scrambles Yahoo group

Pete Yamagata’s 1000 Peaks

Another peak bagging site with an enormous amount of information on
the Northern Sierra as well as western Nevada.

Essential Northern CA message boards and forums:

CA forum on SummitPost

West forum on Backpacker.com

VWA forum:

High Sierra Topix

Whitney Portal Store Message Board

Yahoo Groups:

Sierra Scrambles: http://groups.yahoo.com/group/sierrascrambles/

Yosemite Hikes: http://groups.yahoo.com/group/yosemitehikes/

Northern CA Hiking: http://groups.yahoo.com/group/NorthCA_Hiking