SAN FRANCISCO (Reuters) - Groupon Inc's IPO may be the biggest test yet for the nascent private stock exchanges that allow investors to trade the shares of hot start-ups like Facebook Inc before they go public.

SAN FRANCISCO (Reuters) - Venture capitalist Bill Gurley has noticed something new this autumn: a big jump in the number of what he calls "legitimate introductions" that he receives each day to entrepreneurs who hope he might invest in their start-up companies.

NEW YORK (Reuters) - The crowded advertising technology sector may be about to shake out some losers.

DETROIT/TOKYO (Reuters) - U.S. patent records point to a possible conflict of interest in an Olympus investment in a cookware company, raising more questions for investors demanding a full explanation from the Japanese company of acquisitions that made heavy losses.

SAN FRANCISCO (Reuters) - Tony Fadell, known as the godfather of the iPod, has made a new gadget with the help of a small army of engineers and designers from Apple Inc and other tech giants including Google Inc and Microsoft Corp.

SAN FRANCISCO (Reuters) - Tony Fadell, known as the godfather of the iPod, has made a new gadget with the help of a small army of engineers and designers from Apple Inc and other tech giants including Google Inc and Microsoft Corp.

LA/SAN FRANCISCO (Reuters) - David Prend is one of the most respected investors in green technology - but even he picks some losers.

LA/SAN FRANCISCO (Reuters) - David Prend is one of the most respected investors in green technology - but even he picks some losers.

The Reed Lake discovery could be in production by early 2013 if the construction phase and preliminary economic assessment is feasible. . Today I?m speaking with Neil Richardson, Chief Operating Officer of VMS Ventures Inc. (CDX: V.VMS, Stock Forum)

Sony Corporation senior executive Kazuo Hirai said Friday the Japanese company wants to work more closely with its Swedish joint venture partner Ericsson on smart phone products.

(Reuters) - Dropbox, the company behind the virtual file cabinet that allows users to access documents, photos and videos from different devices, said it had raised $250 million in funding.

(Reuters) - Alternative finance firms, from credit unions to online and pawn lenders, are gaining traction as banks turn off the tap for easy cash and start charging fees for services that customers have had for free.

India's energy giant Reliance Industries has suspended drilling at its oil and gas exploration blocks covered under a deal with new venture partner BP pending a review, a company source said on Monday.

SAN FRANCISCO (Reuters) - When the Department of Defense decided it needed a device that could detect heartbeats from hundreds of feet away, it didn't know where to look. So it turned to some tech-savvy friends: venture capitalists.

WASHINGTON (Reuters) - One of the largest private investors in failed solar firm Solyndra recommended the company's panels for a U.S. Navy contract at a time when the company was struggling with cash flow, the Wall Street Journal reported on Thursday.

(Reuters) - Swedish startup Rebtel, the second largest mobile Internet telephony firm after Skype, expects sales to surge next year based on strong initial demand for its new application combining Internet calls and traditional calling.

(Reuters) - Venture capital firm Benchmark Capital has selected Salesforce.com's Craig Weissman as its new entrepreneur-in-residence, demonstrating a continuing interest in technology surrounding big data and the "cloud."

SAN FRANCISCO (Reuters) - Business-software company Box has won $81 million in funding to expand its business, illustrating investors' continued appreciation for start-up companies that tap into the cloud.

(Reuters) - Rupert Murdoch and his sons James and Lachlan should be kicked off the News Corp board along with 10 other directors when shareholders vote at this year's annual general meeting, a corporate governance watchdog said on Monday.

(Reuters) - Intellectual Ventures, a privately-held patent holding firm co-founded by former Microsoft Corp <MSFT.O> chief technology officer Nathan Myhrvold, sued Motorola Mobility Holdings <MMI.N> in the U.S. District Court of Delaware for patent infringement.