Never heard of Black Friday? It's the name given to the day after Thanksgiving in America (the fourth Thursday in November) and traditionally marks the beginning of the Christmas shopping season.
It's apparently so-called by the police because of the traffic gridlock caused by everyone rushing out to the shops.
It's promising discounts of up to 50 per cent on some Sony TVs and Blu-ray players, 60 per cent off Xbox 360 consoles and daily 'Lightening Deals' plus Deals of the Week.
This morning we've spotted a pair of Monster Beats by Dr Dre Studio headphones for £199.99 (save £80), a Klipsch iGroove HG iPod speaker dock for £85 (save £65) and a selection of Cowon MP3 players with savings of £30-£34. Take That's new album Progress was available for £1.
More after the break
Blu-ray bargains include Mars Attacks!, Lost In Space and Rush Hour for £10.77 each, or you can have Harry Hill's TV Burp's Golden Collection on DVD for £9.47 and the Shooting Stars 2010 DVD for £6.47.
Fancy giving your games console or PC a sonic upgrade? Then check out the Logitech X-530 PC multimedia 5.1 speaker system at £40, down from £70.
Deals are updated hourly, so you'll need to keep checking back on the Amazon website for the latest offers.
However, many shoppers are complaining that the products being promoted are selling out within seconds, and that the site keeps freezing, preventing people from completing their purchases.
"The demand for the albums was incredible," says Brian McBride, managing director of Amazon.co.uk.
"Customers were online and ready for the start of 'Black Friday Deals Week', snapping up the thousands of albums that were available at just £1 in a matter of seconds. The good news is that there are more than 300 deals still to come."
Have you managed to bag yourself a bargain? Let us know in the Comments box below.