Planet Organics: A San-Francisco-based operation that delivers organic produce and groceries throughout the San Francisco Bay area.
www.planetorganics.com

Yummy.com: This is the trading name that HomeGrocer.com now operate under, out of West Hollywood, CA.
www.yummy.com

Spud.com: California, Seattle, and Portland benefit from this locally-stocked organic grocery. Beginning as a small Canadian operation in March of 1998, Spud! are now the largest organic food delivery comapny in North America. They offer free pick-up and delivery (with a low minimum purchase).
www.spud.com 

Safeway: The US's third largest grocer have made a success out of their eGrocery ventures.  A combination of minimum order values, in-store picking and carefully selected markets have made sure that Safeway customers are as happy as the Safeway Financial Director.  A company called Grocery Works controls the online operation of Safeway.  Grocery Works is 54% owned by Safeway and 35% owned by Tesco who have brought their expertise in in-store picking over from Europe.  Safeway service almost 1,000 zip codes in 7 states (plus Washington D.C.) through Safeway, The Vons and Genuardi's.
www.safeway.com

Albertsons: Before being bought by a CVS/Super Valu/Cerberus consortium in January 2006, Albertsons were the second largest grocer in the US.  They are still the largest eGrocer, in terms of areas covered.  Over 1,000 zip codes are covered in 9 states, mainly out of Albertsons stores, but Acme Markets is also used in Philadelphia.
Albertsons originally picked their orders using a centralized warehouse and then changed to the wareroom option. A decision was then taken to use the in-store picking in 2002 and Albertsons have rolled out the in-store model with some success.  The in-store picking model allows greater flexibility, faster roll-out and less upfront costs. www.albertsons.com