Primary Reference:
Chowhound
Hungry Onion
SF Gate (with feed)
Jatbar
NPR Food (with feed)
Menu Pages
Gourmet Ghetto ; Dissident Chef ; Jon Sears ; Cook with James ; Radio Africa & Kitchen
OpenTable Reservations
Waiter.com
Annual SF Prix Fixe Deals
SF Dives Club (current through Nov 07)
Spicy Suppers Club (current through Mar 13 2008)

South Bay:
Silicon Valley Dives: 1 ; 2 ; 3

Berkeley:
VIA: Gourmet Ghetto
Best of Berkeley: dishes, restaurants
Margarita's Reviews
Danette's Reviews

Food Delivery:
waiter.com (see coupons in e-mails) (scheduled or on-demand))
delivery.com (scheduled or on-demand)
Munchery (mostly scheduled, limited on-demand)
Sprig (only on-demand)
seamless.com (only on-demand)
eat24.com (acquired by yelp) (and its hilarious blog, with weekly coupons too) (only on-demand)
EatStreet (only on-demand)
grubhub (only on-demand)
SpoonRocket (only on-demand)
doordash ($6 delivery, small markup, has tip) (scheduled or on-demand)
Caviar ($5 delivery fee + substantial markup, no tip) (scheduled or on-demand)
Postmates (food and other stuff delivery) ($5+sliding scale+9%) (only on-demand)
orderahead (scheduled or on-demand)
Thistle (vegetarian/vegan meal delivery; no choices) (scheduled days ahead)
Bento (Asian food delivery) (only on-demand)
Good Articles on Particular Food Topics

Blogs:
Julie's Food & Restaurant Review Blog
Check Please Bay Area TV Show
SF Chronicle's Michael Bauer
KQED's Bay Area Bites (with feed)
New York Times Dining (with feed)
Robert Lauriston (chowound) reviews at SF Weekly
Chow(hound) Digest (read highlights from 2007; subscribed 2008-2009)
The Food Section

Food Festivals:
California Food and Wine Festivals
California Fruit, Vegetable, and Nut Festivals

Old:
Berkeley Restaurants (dead)
Bay Gourmet (most links broken)
Best of Berkeley (food) (awaiting renovation)