Online shopping giant Amazon is tipped to officially start its Australian business by the end of November to coincide with the Black Friday and Cyber Monday shopping frenzy, when retailers drastically reduce prices.

Already some brands have started discounting to whet the appetite of what are said to be the biggest "shopping events" of the year. They start Friday, November 24 and end Monday, November 27.

But the flaw of internet shopping is still the collection and return of goods.

According to Citi's retail analyst, Craig Woolford, Australian shoppers have embraced "click and collect", where they buy online and collect at a store, more than anywhere else in the world.