Search and Discover improvements: Get more great content faster  —  Today we're updating the Android and iOS apps, as well as mobile.twitter.com.  This release provides a single stream of content in each tab, so you can better find what's most important to you when you're on the go.

Dell's downward spiral: 10 years of failed consumer devices  —  Things haven't gone so well since the Dell Dude split  —  It's no secret why Dell's struggling so badly it just took a $2b loan from Microsoft and bought itself back from shareholders to become a private company …

U.S. release of new BlackBerry with keyboard may be delayed  —  TORONTO — A modern BlackBerry with a physical keyboard might not arrive in the U.S. until May or June, a month or two behind other parts of the world, the chief executive of the smartphone maker suggested in an interview.

Google Said in Talks to Invest $50 Million in Vevo Site  —  Google Inc.'s YouTube is negotiating a $50 million equity investment in music video service Vevo LLC, according to two people with knowledge of the situation.  —  Google would own less than 10 percent of the company …

Nudged by Apple, Twitter's Porn Saga Ends in a Raw Deal for Vine  —  We spent last week watching Vine, Twitter's new video-sharing app, get raked over the coals in the public eye for its so-called “porn problem”: If you searched for certain suggestive hashtags on the service …

Google Revamps AdWords In Bid to Boost Mobile Ad Revenue  —  Changes Could Mean Higher Prices for Mobile Keywords  —  Google is making changes to AdWords, the core product that fuels its search business, that could help it make mobile clicks into a bigger cash cow.

Urban Airship Nabs $25 Million in Additional Funding  —  Urban Airship, the Portland-based startup that specializes in helping power mobile app notifications, has raised another $25 million, as the company seeks to further expand beyond its roots.  —  AllThingsD.com

Google Spends $125 Million On Channel Intelligence To Improve Google Shopping  —  Google has acquired Channel Intelligence for $125 million in cash.  —  According to its blog, Channel Intelligence (CI) tracks online retail sales for a number of categories ranging from computing to consumer packaged goods.

Exclusive: Google and Twitter execs form VC fund  —  Google and Twitter product pros form venture capital firm.  —  FORTUNE — A pair of product managers from Google and Twitter are forming a new venture capital firm, Fortune has learned.  —  One of the two principals is Hunter Walk …

Yelp's disappointing Q4 net loss of $5.3m comes despite $41.2m in revenue, up 65% from Q4 2011  —  Today Yelp reported its fourth quarter financial performance, including revenue of $41.2 million and an earnings per share loss of $0.08.  Analysts had expected the company to lose $0.03 per share on revenue of $40.2 million.

Microsoft Surface Pro Review  —  There's clearly interest in a device that converges the tablet and notebook.  ASUS saw some of the earliest success in this department with its Transformer line of Android tablets.  Once the first Windows RT/8 designs started appearing …

Dropbox Unveils Sync API For Mobile Developers, Allows Apps To Work With Cloud-Based Files As If They Were Local  —  Dropbox is unveiling a brand new API for developers today that should give mobile app makers an excellent new tool to work with.  The Dropbox Sync API allows apps for iOS …

RUMOR: Samsung will unveil the GALAXY S IV on March 15th and on sale from early April  —  We have some hot news for all those happy Samsung Galaxy owners.  Samsung is going to announce the Galaxy S IV on March 15th.  The biggest Android smartphone unpacked event is still not confirmed by Samsung self …

Anger rises as Fed confirms Anonymous hack, downplays US bank emergency system breach  —  Summary: The Federal Reserve has confirmed Sunday's Anonymous hack; ZDNet has learned the exposed information is from thousands of Fed emergency system bank contacts.  —  Violet Blue

Apple announces new iTunes Store record with 25 billion songs sold  —  Apple today issued a press released announcing the iTunes Store has a hit a new record with 25 billion songs sold.  Apple's senior vice president of Internet Software and Services noted that Apple averages 15,000 songs downloaded per minute.

Leaked video: Google-designed Chromebook Pixel with touchscreen and 2560 x 1700 resolution  —  We have an intriguing development for you today, one that involves what's supposedly a new Chromebook that it's currently in the works.  —  Developer Francois Beaufort (the guy who provided …

Salesforce.com has acquired French startup EntropySoft  —  Salesforce.com has acquired EntropySoft, a French startup that offers content integration solutions.  —  A spokesperson confirmed that the deal recently closed, but the company won't be making a formal announcement.

Exclusive: Microsoft and Symantec disrupt cyber crime ring  —  (Reuters) - Software makers Microsoft Corp and Symantec Corp said they disrupted a global cyber crime operation by shutting down servers that controlled hundreds of thousands of PCs without the knowledge of their users.

Android Jelly Bean hits 13.6% adoption, ICS peaks at 29%, but Gingerbread still on over 45% of devices  —  Google updated its Platform Versions Web page for Android on Tuesday, and it would appear that the second latest version has peaked.  Android 4.1 (Jelly Bean) and Android 4.2 (Jelly Bean) …

Reseller claims Mac Pro coming, Apple points to Cook's comments  —  Apple has long been coy about its plans to replace its languishing Mac Pro workstation, which it plans to stop selling in the EU March 1 due to regulatory changes.  However, the company has reportedly been a little more up-front with some of its European resellers.

Sheryl Sandberg Turned Down A Chance To Be LinkedIn CEO  —  Sheryl Sandberg had an opportunity to be CEO of LinkedIn in 2006, but turned down the job, she reveals in her new book, “Lean In”.  —  The book isn't out yet, but Tom Gara at the Wall Street Journal landed an advanced copy …

Crooks Net Millions in Coordinated ATM Heists  —  Organized cyber criminals stole almost $11 million in two highly coordinated ATM heists in the final days of 2012, KrebsOnSecurity has learned.  The events prompted Visa to warn U.S. payment card issuers to be on high-alert for additional ATM cash-out fraud schemes in the New Year.