It owns 33% of the internet “cloud,” 49% of US e-commerce, and is elbowing into other sectors.

Amazon (AMZN) is a Goliath in very different sectors. One is the internet cloud, a booming business. Amazon Web Services has evolved into the single largest player offering cloud computing services to companies, governments, and individuals. As of the first quarter, AWS owns a 33% share of the cloud infrastructure market, ahead of Microsoft (MSFT) with a 13% share, and Google (GOOG) with a 6% share. That business is highly profitable.

Less profitable are Amazon’s e-commerce operations. But in terms of magnitude, Amazon totally rules. According to a report from eMarkter, cited by CNBC, Amazon’s online sales in the US are expected to surge 30% in 2018 compared to a year earlier, to $258 billion. This would boost Amazon’s share of US e-commerce sales of 49.1%!

The other combatants are fighting over the crumbs in terms of market share. The next nine largest e-commerce operations combined grab about 22% of the market:

eBay (EBAY): 6.6%

Apple (AAPL): 3.9%

Walmart (WMT): 3.7%

Home Depot (HD): 1.5%

Best Buy (BBY) 1.3%

QVC Group (QVCA): 1.2%

Macy’s (M): 1.2%

Costco (COST): 1.2%

Wayfair (W): 1.1%

That leaves 29% of e-commerce for all the other retailers with online operations, from Bed Bath & Beyond (BBBY) to the tiniest home-office operations, millions of them.

Amazon online sales fall into two categories: its “direct sales” and the sales from other sellers that use Amazon’s platform and execution (“Marketplace sales”). Both are growing in leaps and bounds, but Marketplace sales are growing the fastest.

In 2018, Marketplace sales are expected to account for 68% of Amazon’s e-commerce sales, and direct sales for 32%, according to eMarketer estimates.

Overall, e-commerce sales in the US have soared 16% in the first quarter from a year ago and are on track to exceed $500 billion this year.

But some types of sales have resisted the move to the internet, largely because of the type of product that doesn’t lend itself easily to online sales: gasoline, new and used vehicles, groceries, and beverages. Together they account for 51% of total brick-and-mortar sales.

The remaining 49% is under total attack from e-commerce, among them prominently department stores, whose sales have been wilting since 2001. This half of brick-and-mortar has already surrendered 22% of its sales to e-commerce.

Since nearly half of e-commerce sales happen at Amazon, the share it has taken from all under-attack brick-and-mortar is over 10%. This is just one company, Amazon, against all under-attack retailers.

Now Amazon is unhappy with these results because grocery and beverage sales are a huge business in the US that has steadfastly refused to move online, despite efforts by all kinds of retailers, including Safeway starting two decades ago.

After more or less unsuccessfully experimenting with its own online grocery operation, Amazon bought Whole Foods – not because Amazon wants to get into brick-and-mortar, but because Amazon wants to dominate grocery sales over the next two decades – and to do that, it has to persuade Americans to buy their groceries online, just like Americans are finally buying their shoes online, something they’d sworn they’d never do.

But that’s how Amazon operates. And grocery sales in the US are just too big to let them slip away. It’s going to be tough, and no one has succeeded yet in getting Americans to buy their groceries online, but Amazon is now committed.

It took Amazon a quarter century to grab this much market share, and it will continue to try to grab more. Amazon has shaken up US retail and is now totally dominant. It has the most formidable distribution system in the US. The “Amazon effect” has become a common expression – Amazon buys an online pharmacy, and the shares of CVS and Walgreens plunge. Everyone in retail is trembling when Amazon flares its nostrils. Walmart, trying to defend its turf after ignoring e-commerce for too many years, is belatedly lining up its immense firepower against Amazon, with mixed results, as Walmart’s feeble 3.7% share of e-commerce sales show.

Amazon is a book publisher. It’s encroaching on the turf of TV, Netflix, and others with its video offerings. It has recently begun to invade online advertising with its Amazon Publisher Services “Unified Ad Marketplace” (it’s trying to get me to sign up), and thereby it’s invading the market where Google and Facebook totally dominate. Its Alexa and other “smart” internet-connected devices are populating homes and influencing all kinds of decisions that households make – not to speak of the data they send back. Amazon keeps expanding into new territories. But there is competition everywhere, and e-commerce sites spring up all the time, and some get big quickly. And there are courses being offered on how to get into the game, such as those covered at eCom Elites.

There are calls for the government to go after Amazon and break it up. But this is the internet, and trying to tar Amazon as a monopoly is like trying to nail Jell-O to the wall. Consumers like buying at Amazon, or else they wouldn’t do it. Anything that Amazon sells can be bought elsewhere, and often for less.

And yet, there is something disconcerting about one company becoming so dominant in so many ways. This is even more disconcerting when a handful of other companies totally dominate other areas that consumers deal with on a regular basis – but whatever it is that is disconcerting, for now, thanks to the internet, it’s not lack of other competition.

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