I need links to websites that have updated lists of elected officials
for the President, California Congresspersons and Senators, county
supervisors in Northern California Counties, as well as city council
members in those counties.  These must list specific office holders,
their phone, email and postal address listings.

Hi rconheim:

The best listing of elected officials that I've found is at the ACLU
of Northern California.

ACLU of Northern California
http://www.aclunc.org/

They have a great page that lists links to just the sort of
information you are looking for:

Take Action!
http://capwiz.com/aclu/ca/officials/state/?state=CA

Congressional Members (both house and senate) can be found at: 

Congressional Delegation 
http://capwiz.com/aclu/ca/dbq/officials/directory/statedel.dbq?state=CA

Local government officials can be found by using the convenient
search/browse facility at:

Local Elected Officials - California
http://capwiz.com/aclu/ca/officials/localsearch/alpha/?search_type=alpha&state=CA

For example, a search for San Francisco lead to the page:

Local Officials
http://capwiz.com/aclu/ca/officials/locality/?entity_id=126&state=CA

As far as the President is concerned - I'm assuming you mean President
G.W. Bush - his contact information can be found at:

Contacting the White House 
http://www.whitehouse.gov/contact/


I hope that this information has been of help in your search.
                 
If you need any clarification of the information I have provided,
please ask using the Clarification feature and provide me with
additional details as to what you are looking for. As well, please
allow me to provide you with clarification(s) *before* you rate this
answer.
                      
Thank you.                       
                      
websearcher-ga                      
                      

Search Strategy (on Google):               
 
"white house" 
california elected officials