SAN FRANCISCO (Reuters) – Amazon.com Inc’s latest $199 tablet computer got tepid reviews from some closely watched gadget reviewers, a potential hiccup for the world’s largest Internet retailer as it tries to grab a bigger share of one of the hottest technology sectors this holiday season.

David Pogue of The New York Times said the 7-inch Kindle Fire HD has no camera on the back, no GPS navigation, no speech recognition, and trails Apple Inc’s more-expensive iPad in thickness, screen size, screen sharpness, Web speed, software polish and application availability.

SAN FRANCISCO (Reuters) – Groupon Inc (GRPN.O: Quote, Profile, Research, Stock Buzz) shares rose 8 percent on Tuesday after Chief Financial Officer Jason Child told an investor conference that the company is taking steps that will help drive its growth in Europe.

Technology that helps Groupon send more relevant daily deals to U.S. subscribers is now being introduced in Europe.

SAN FRANCISCO (Reuters) – Zynga Inc’s chief marketing officer resigned on Monday, becoming the latest senior executive to depart the struggling social games company behind popular Facebook Inc games such as Farmville.

Jeff Karp joins chief operating officer John Schappert and chief creative officer Mike Verdu among the top executives who have quit since August.

By Alistair Barr and Sinead Carew

(Reuters) – Amazon.com Inc trumpeted cutting-edge wireless technology as a key selling point for the fanciest of the new Kindle devices introduced by CEO Jeff Bezos on Thursday. There’s just one problem: the devices have not yet been approved for sale by the Federal Communications Commission.

FCC approval is required for wireless communications products, to assure that they operate safely and won’t improperly interfere with other signals.

SANTA MONICA, California (Reuters) – Amazon.com Inc unveiled larger Kindle Fire tablets on Thursday, challenging Apple Inc’s dominant iPad with lower prices and a trove of digital content that Amazon hopes will win it a bigger share of the booming tablet market.

The world’s largest Internet retailer lifted the lid on devices with price tags ranging from $159 to $599. The new tablets come with ads known as “special offers” that appear when screens are locked and in the corner of the home screen, helping Amazon keep prices low.

SANTA MONICA, California (Reuters) – Amazon.com Inc (AMZN.O: Quote, Profile, Research) showed off larger and higher-resolution Kindle Fires on Thursday, for as much as $499, taking aim at a fast-growing market now dominated by rival Apple Inc (AAPL.O: Quote, Profile, Research).

Chief Executive Jeff Bezos, taking the stage in Santa Monica, California, unveiled an 8.9-inch version called the Kindle Fire HD. The costliest, 4G-ready version will go for $499, while a Wi-Fi version is $299.

, Sept 6 (Reuters) – Amazon.com Inc
showed off the first of several Kindle gadgets expected
to be unwrapped on Thursday, a “paperwhite” e-reader with a much
sharper screen and longer battery life.

Chief Executive Jeff Bezos, taking the stage at a launch
event in Santa Monica, California, is expected to unveil later
on Thursday the new Kindle Fire tablet, which takes aim at a
market dominated by Apple Inc.

SANTA MONICA, California (Reuters) – Amazon.com Inc showed off the first of several Kindle gadgets expected to be unwrapped on Thursday, a “paperwhite” e-reader with a much sharper screen and longer battery life.

Chief Executive Jeff Bezos, taking the stage at a launch event in Santa Monica, California, is expected to unveil later on Thursday the new Kindle Fire tablet, which takes aim at a market dominated by Apple Inc.

By Alistair Barr

(Reuters) – Groupon Inc became the latest young consumer Internet company to disappoint Wall Street on Monday, when the world’s largest online daily deals provider missed quarterly revenue expectations and gave a cautious profit outlook.

Groupon shares slumped after the results, plummeting almost 70 percent from where they priced in a huge initial public offering last November.

By Alistair Barr

(Reuters) – Amazon.com Inc is trying to get its digital music and video on as many gadgets as possible as the world’s largest Internet retailer replicates a strategy that paid off for its Kindle e-book business.

The theory is that if customers can play and watch Amazon (AMZN.O: Quote, Profile, Research) music and video on all their existing devices, they are more likely to purchase the content from Amazon rather than competitors like Apple Inc’s iTunes (AAPL.O: Quote, Profile, Research) and Netflix (NFLX.O: Quote, Profile, Research).