Out here in the Pacific NW we have two active hiking forums: portlandhikers.org (in Portland, obviously) and nwhikers.net in Seattle. The former has a Field Guide which is most useful in finding hikes. The Washington Trails Association (wta.org) has a similar database for Washington trails. There are a plethora of hiking and climbing clubs. Finally, many many excellent trail guidebooks have been published. For Washington, the best known are published by the Seattle Mountaineers. The best-known ones in Oregon are by William Sullivan. Of course there are many others!