Kindle Fire: Amazon to launch tablet this week
Retailer to take on Apple's iPad with Android-based product that will receive full release in November, say reports. By Lisa O'Carroll
Twitter to open international headquarters in Dublin
Microblogging site joins Google, Facebook and Zynga in opening office in Irish capital
Google+ searches to show celebrity endorsements
Google+ to enhance search results with celebrity endorsements of sites linked to their brands
Yahoo, AOL and Microsoft ‘to challenge Google for display ads’
Three tech giants have approached media buyers about plan to target rival's $2.5bn share of US market, say reports. By Lisa O'Carroll
Groupon ‘lining up IPO as Facebook delays’
Online discount firm expected to float in late autumn but social network has put off IPO until late 2012, according to reports. By Josh Halliday
Inventor James Dyson launches heater that cannot burn you
New design utilises ceramic stones to generate heat and will set you back a cool £270. By Charles Arthur
Why technology start-ups won’t save us from recession
The New York Times's Thomas Friedman was wrong to suggest we put our faith in new technology companies, writes John Naughton
AOL and Yahoo reported to be in merger talks
AOL chief sounds out Yahoo's advisers over combination of internet companies. By Dominic Rushe
Carol Bartz blames Yahoo ‘doofuses’ for firing her in foul-mouthed tirade
Axed Yahoo boss pulls no punches as she tells Fortune magazine of 'worst board in the country'
Apple staffer loses test iPhone in bar – again
Police called in for search as 'priceless' prototype iPhone 5 is left in Mexican restaurant in San Francisco, according to report. By Charles Arthur
Vivendi’s hit games offset music decline
Games successes such as the Call of Duty series and World of Warcraft help counter slide at Universal Music Group in first half. By Mark Sweney
Apple stock drops as Steve Jobs resigns chief executive role
A 3% fall in Apple stock wipes $10bn off the company's value, as investors fret over a future without its visionary leader
FBI fights back against cybercrime
Law enforcers have linked up with businesses and academics in the US to tackle the spread of crime on the internet
HP TouchPad sale will cost it millions
Prices slashed on tablet that was discontinued after being on sale for just 48 days. By Charles Arthur
Profile: Mike Lynch
From £2,000 to £400m – Autonomy co-founder Mike Lynch's transformation from academic to technology entrepreneur was incredibly successful