Google Express, the search engine's home delivery service, will begin shipping fresh grocery items to its customers. According to the Wall Street Journal, the offering is starting small and is only available to select areas of SF and LA. The move puts the firm toe-to-toe with other grocery delivery outfits like Amazon and Instacart, although it's teaming up with local retailers like Costco and Whole Foods. As the report says, there are some drawbacks (for users), with Express' two-hour delivery window being stretched out to four hours. In addition, the minimum charge has increased from $15 to $35, plus a $3 per-order surcharge for members.