Historic Facebook debut falls flat

SAN FRANCISCO (Reuters) - The historic initial public offering of Facebook Inc did not go as planned on Friday, as the social networking company's sky-high valuation combined with trading glitches left the stock languishing near its offering price at the market close.

Pakistan blocks Twitter access over "blasphemous content"

ISLAMABAD (Reuters) - Pakistan on Sunday blocked access to Twitter in response to "blasphemous" material posted by users on the microblogging and social networking website, a senior government official said.

Yahoo near selling partial Alibaba stake for $7.1 billion: source

NEW YORK (Reuters) - Yahoo Inc is nearing a deal on Sunday to sell part of its stake in Alibaba Group back to the Chinese company for $7.1 billion, according to a source familiar with the matter.

Mediaset fears internet challenge amid ad slump

MILAN (Reuters) - An executive at Mediaset said on Friday internet giants could challenge Italy's biggest commercial broadcaster's business model in coming years, while the advertising outlook remains grim.

Iran threatens to sue Google over dropping Persian Gulf

DUBAI (Reuters) - Iran's Foreign Ministry threatened on Thursday to take legal action against Google for dropping the name Persian Gulf from its Google Maps and leaving the waterway between Iran and Arab states nameless, state television reported.

GM ad move followed failed Facebook pitch: sources

DETROIT/NEW YORK (Reuters) - Facebook may only have itself to blame for why General Motors rained on its IPO parade this week.

Comcast trying out Internet usage pricing, dropping caps

(Reuters) - Comcast Corp said on Thursday it will introduce a trial for usage-based billing for its Internet subscribers in a move seen to pre-empt more complaints the cable company favors its own Web video service over rivals.

Insight: Who got Facebook IPO shares? Fairness may not come into it

NEW YORK (Reuters) - A lot of loyal Facebook fans and occasional investors are discovering a hard truth this week: Money and connections talk, especially when it comes to a hot deal handled by Wall Street.

Pinterest financing values company at $1.5 billion

(Reuters) - Silicon Valley startup Pinterest raised $100 million from a group led by Japanese online retailer Rakuten Inc, valuing the company at about $1.5 billion and underscoring the huge investor appetite for social-networking companies.

No respite for HP, Dell in Windows 8: BMO

(Reuters) - Microsoft's long-awaited launch of the Windows 8 OS may not change the fortunes of PC makers, BMO analysts said, lowering their price targets on the stocks of Hewlett-Packard Co and Dell Inc.