San Francisco Bay
Navigational Aids Wind. (on the Bay and just outside the Gate) Weather (National Weather Service)

California Coast Weather
Weather. (wind and sea readings from 17 buoys and stations between Pt. Arena and the Mexican border)
Also has further links to weather buoys and stations all over the U.S.:

Pacific Winds and Pressure
University of Hawaii – daily map (NE Pacific)

Sea States
Pacific Ocean World Wide

Earthquake
US* Geological Survey – Excellent site. Monitor events, contribute observations. SF Bay Area
*Includes world-wide quakes. Here’r an historical view of Danville ‘89

Topological maps – Look great, (if you want to pay $50/yr).

lookelook index.