Instagram reaches 27 million registered users, shows off upcoming Android app  —  Instagram, the photo-sharing app that has taken a definitive lead on iOS, said it has surpassed 27 million registered users.  —  Co-founder Kevin Systrom didn't disclose daily active users.

Is CNN buying Mashable?  —SXSW  —  Breaking News from SXSW: Reuters blogger Felix Salmon has learned from an unnamed source that CNN will buy social media website Mashable for more than $200 million dollars.  The source says an announcement is expected for Tuesday.  (March 12, 2012)

Why the new iPad's Retina Display matters  —  Specs are specs, and every time a new device is announced we expect the numbers to ratchet a little higher.  This is the stuff that makes people (especially tech pundits) so cynical of upgrade cycles: the typical incremental updates don't tend …

Nokia likely to launch Windows 8 tablet PCs in 4Q12, say sources  —  Nokia will team up with Microsoft to venture into the tablet PC market by releasing a 10-inch Windows 8-based tablet PC set on Qualcomm's dual-core platform in the fourth quarter of 2012 at the earliest, according to sources at upstream component suppliers.

Peter Thiel, university-hater, heads to campus  —  (Reuters) - Peter Thiel, the superstar Silicon Valley investor, has famously dismissed university as a waste of time and money, and even offered students cash to drop out.  —  But his views apparently do not apply to himself - or to Stanford University.

A Code of Conduct for Content Aggregators  —  As words and articles became digitized over the last 15 years, they began to float, there for the plucking and replication elsewhere.  Words like “curation” and “aggregation” became the language of the realm, sometimes used as substitutes for describing the actual creation of content.

Iphone Fails to Gain China Share as Samsung Lead Triples: Tech  —  Apple Inc. (AAPL) got a second partner in China to sell the iPhone in the world's biggest mobile-phone market.  The deal may be too late to catch Samsung Electronics Co. (005930), with a market share that's three times larger and growing.

We just released our Khan Academy iPad app. Download videos, track progress, and more. http://itunes.apple.com/... @khanacademy

Social gift app Wrapp steams ahead with UK launch  —  When the CEO of Wrapp told us last week that the social gifts company was speeding up its expansion plans in order to combat the threat from a Samwer brothers clone, he wasn't joking: today the business is announcing that it is launching in the U.K. …

Les Moonves: Steve Jobs Approached CBS for Apple TV Content  —  The CBS CEO spoke at the UCLA Entertainment Symposium on Saturday, which also included a panel on negotiating talent deals.  —  CBS CEO Leslie Moonves said Saturday that he was approached about a year ago by Steve Jobs …

Apple: iPad preorders sell out, demand ‘off the charts’  —  If you are hoping to score a new iPad from Apple, you might have to wait.  Apple's website shows March 19 as the earliest ship date for online orders of its popular tablet computer.  And there is a limit of two per customer on the number of tablets that can preordered.

Court Declares Newspaper Excerpt on Online Forum is a Non-Infringing Fair Use  —  Late Friday, the federal district court in Nevada issued a declaratory judgment that makes is harder for copyright holders to file lawsuits over excerpts of material and burden online forums and their users with nuisance lawsuits.