Retailers including John Lewis and Currys head for record online sales as frenzied shopping swamps websites.
Crude oil prices hit a four-year low after the decision of the Opec oil producers' cartel not to cut output.
Black Friday is less intense this year in the US after many stores opened earlier on Thursday.
The UK housing market is continuing to slow, Nationwide says, with annual house price inflation falling to 8.5% in November.
The eurozone inflation rate falls to 0.3%, suggesting that deflation remains a threat for the 18-nation bloc.
The BBC has learned one of the Tesco executives suspended by the company over the £260m profit misstatement has left the company.
Shares in energy stocks fall further as investors continue to react to the sharp fall in oil prices following Thursday's Opec meeting.
India's economy grew by 5.3% in the July-to-September period from a year earlier, down from a rate of 5.7% in the previous quarter.
A report from the UK parliament says Facebook, Twitter and other social networking firms need to make their terms and conditions clearer.
Regulator Ofgem imposes record £28m penalty on power generator Drax, while InterGen faces an £11m payout, for missing energy saving obligations
Japan's Nikkei closes at its highest level for two weeks, with exporters boosted by a weaker yen and airline shares helped by falling oil prices.
More than 70% of fresh chickens being sold in the UK are contaminated with the Campylobacter bug, the Food Standards Agency (FSA) reveals.
Germany's unemployment rate has hit a record low of 6.6%, but falling inflation has raised eurozone deflation fears.
The High Court bans a further 53 piracy sites, more than doubling the number that the UK's leading net providers must block.
A landmark vote at the European Parliament has called for Google's search business to be separated from its other businesses.
The American wife of London financier Sir Chris Hohn, Jamie Cooper-Hohn, is awarded £337m by a High Court judge in a divorce case.
More than one million vinyl records have been sold in the UK so far this year - the first time the milestone has been achieved since 1996.
Police are called to supermarkets across the UK amid crowd surges as people hunt for "Black Friday" offers.
About 1.5 million gas customers with pre-payment meters have been overcharged because their meters are faulty, the industry has admitted.
The number of mortgages being granted by Britain's banks falls by 16% over the last year, according to banking industry body, the BBA.
The Scottish Parliament should have the power to set income tax rates and bands, the body on strengthening devolution recommends.
The UK would face "severe economic consequences" if there was a significant disruption to the supply of electricity, says the Royal Academy of Engineering.
Growth in the Philippine economy slowed sharply in the third quarter due to weaker growth in all sectors, the government announces.
After regaining control of their family castles, which had been confiscated by the communists, many Romanian castle owners are now running them as small businesses.
An entrepreneur who turned his back on banking to set up a shoemaking company shares his tips for success as part of the African Dream series.
Edwina Dunn looks back on how she and her husband helped Tesco launch its Clubcard, and change how many of us do our shopping.
Owner Ann Budge says leaving Tynecastle Stadium could be the most cost-effective long-term solution for Hearts.
A report examining the "evidence base" for policymaking suggests big sporting events have little or no direct economic benefit - and challenges other assumptions about teaching and police.
The government calls on Fifa to publish in full the investigation into the 2018 and 2022 World Cup bidding process.
There are calls on the government to do more to help the return of Tunisians who travelled to Iraq and Syria to fight with extremist groups.