Microsoft extends Yahoo's U.S. search revenue guarantee  —  Microsoft Corp extended the revenue guarantee it provides to Yahoo Inc in the companies' underperforming search partnership, Yahoo said on Tuesday.  —  The U.S. revenue-per-search guarantee, which had expired on March 31 …

Nokia investors tell CEO their patience running thin  —  (Reuters) - Nokia investors told Chief Executive Stephen Elop on Tuesday that they were running out of patience with his flagging attempts to catch up with market leaders Apple and Samsung in smartphones.

Yahoo's Mayer Has Met with Hulu Execs in a Preliminary Look-See at Premium Video Unit  —  According to numerous sources close to the situation, Yahoo CEO Marissa Mayer recently met with top execs at Hulu, the premium video service whose media company owners have been considering selling it for some months.

Introducing the YouTube Trends Map  —  Are teens in the South watching the same videos as middle-aged folks in New England?  Now with the YouTube Trends Map (youtube.com/trendsmap), you can see today's most popular videos in major markets across the U.S. You can also see what's popular with women or men …

CrunchFund's future  —  With nearly 100 portfolio companies and just two remaining partners, what is the future of Michael Arrington's venture capital effort?  —  FORTUNE — It has been 20 months since TechCrunch founder Michael Arrington launched CrunchFund, a venture capital firm …

New Google Maps Interface  —  Google is about to launch a new interface for Google Maps.  The update will remove the sidebar and will display everything on top of the full-screen map.  One of the new features lets you restrict local search results to places recommended by top reviews or your Google+ circles.

White House picks Twitter lawyer as chief privacy officer  —  Nicole Wong, a respected Silicon Valley attorney with over a decade of experience in copyright and privacy law, is joining the Obama administration.  —  President Obama has picked Nicole Wong, currently Twitter's legal director …

Tesla CEO Talking With Google About ‘Autopilot’ Systems  —  Elon Musk, the California billionaire who leads Tesla Motors Inc. (TSLA) (TSLA), said the electric-car maker is considering adding driverless technology to its vehicles and discussing the prospects for such systems with Google Inc. (GOOG) (GOOG)

Apple's Customer Data-Privacy Rules Struck Down by German Court  —  Apple Inc. (AAPL), already facing a U.S. privacy lawsuit over its information-sharing practices, was told by a German court to change its rules for handling customer data.  —  A Berlin court struck down eight of 15 provisions …

Zuckerberg nemesis Aaron Greenspan sues Facebook again (plus the rest of Silicon Valley)  —  Aaron Greenspan, the founder of Think Computer, creator of the FaceCash mobile payment system and (according to him) co-founder of Facebook, has been giving Mark Zuckerberg headaches for many years now …

Seagate launches the 600 SSD, its first solid-state drive for consumers  —  Seagate has come a long way in its attitude toward solid-state drives: it went from fighting the future to embracing SSDs with open arms, albeit only in enterprise at first.  Now, it's launching its first-ever flash drive for end users, the 600 SSD.

SAP Takes It All to the Cloud  —  SAP, the German software giant, is making one of the largest pushes into cloud computing yet seen from a large incumbent company.  It may even be destroying its own business, in order to build for a new one.  —  SAP is famous for developing enterprise resource planning, or ERP, software.

Internet traffic from Syria vanishes in the midst of ongoing conflict  —  Google, Renesys, and others point to an internet blackout in Syria, the latest blow in an ongoing conflict.  Analytics group Renesys confirmed about an hour ago that internet had apparently gone dark …

Coinbase Nabs $5M in Biggest Funding for Bitcoin Startup  —  Eleven-month-old startup Coinbase announced Tuesday the largest funding round to date for a Bitcoin startup, a $5 million investment led by Union Square Ventures. … In an exclusive interview with The Wall Street Journal …

Google Glass Picks Up Early Signal: Keep Out  —  SAN FRANCISCO — Google's wearable computer, the most anticipated piece of electronic wizardry since the iPad and iPhone, will not go on sale for many months.  —  But the resistance is already under way.  —  The glasseslike device …

Microsoft reveals Windows Blue will be released to developers in June, distributed via Windows Store  —  Today at the Wired Business Conference Microsoft announced that Windows 8.1, codenamed Blue, will reach developers by the end of June.  The company also stated that the upgrade will be available …

Google Glass Explorer Edition now receiving XE5 software update, brings loads of new features and enhancements  —  About The Author  —  Chris Chavez is a Contributing Editor for Phandroid.com and has posted 3008 articles.  Connect with him on G+.

Social Startup Viddy Recapitalizes, Shuffles Board  —  Viddy, the social video app for mobile devices, is overhauling its capitalization table, returning a large amount of money to investors in the company's most recent round of funding.  —  Viddy will return $18 million of the $30 million raised …

OpenStreetMap To Give Google Maps A Run For Its Money By Launching Its New ‘iD’ Editor  —  Google has become the king of maps because of the technology that it has developed over the past eight years.  One competitor, OpenStreetMap, has developed its own tools and built a community …

Nest acquires MyEnergy (formerly Earth Aid), moves deeper into utility data  —  Smart thermostat maker Nest has acquired energy data startup MyEnergy, formerly called Earth Aid.  Nest didn't disclose terms of the deal, but said in a release on Tuesday that the acquisition would help Nest further …

Obama May Back F.B.I. Plan to Wiretap Web Users  —  WASHINGTON — The Obama administration, resolving years of internal debate, is on the verge of backing a Federal Bureau of Investigation plan for a sweeping overhaul of surveillance laws that would make it easier to wiretap people …