Thanks for the link, I didn't realize that Safeway offered a 1-hour delivery window. One note is that a $49 minimum order is required for delivery service and a $12.95 shipping fee on purchases under $150.

Google Shopping has no minimum order amount and for this 6-month trial period has no delivery fees. Though, their site eludes to a $5 delivery fee per store you order items from once the trial period ends.

Of course, Safeway offers delivery of perishable foods, while Google shopping does not.

Similarly Walmart also offers delivery : http://delivery.walmart.com/