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"On Loving (and Leaving) LearnBoost Rafael Corrales, co-founder and CEO of one of my favorite education technology startups, LearnBoost, recently announced that he has stepped down from the helm of the company and has moved on to join a venture capital firm. I admit: I'm fairly devastated by this news. I have long been a supporter of LearnBoost, first covering its official launch back in August 2010 when I was still a tech blogger for ReadWriteWeb. There I covered many of the startup's tech and product updates - including, for example, the development and open-sourcing of its crowdsourced translation interface - even though the editors were always quick to tell me not to cover ed-tech startups. ("Nobody cares, Audrey.") Nevertheless, when I was assigned to write the end-of-year story "Top 10 Startups of 2010," I put LearnBoost on the list alongside other exciting new startups from the year, including Instagram, Flipboard, Quora, Square, and Hipmunk."

"Educational technology companies and entrepreneurs may face the risk of a "tech bubble," similar to the massive boom-and-bust that rocked the technology market in the late 1990s, according to market analysts and a recently released paper. A relatively new focus on K-12 educational technology as an investment vehicle, a surge of investors looking to cash in on the latest innovations, and fewer barriers to developing an ed-tech business have merged in ways that have some market observers wary of what's ahead. The flurry of activity is prompting comparisons to the dot-com crash of the late 1990s, which brought the failure of many technology-related businesses that had drawn huge sums of money from investors. "

Jeff Robin, art teacher at High Tech High, outlines a common misunderstanding of project based learning.

"The big theme of Mr. Shirky's talk was openness. Taking advantage of technology, he argued, will require "doing more sharing than we're used to and then learning to live with results." He underscored the power of sharing with an anecdote about what happened when the Smithsonian Institution made a cache of photographs available on Flickr, the photo-sharing site. Users catalogued the archive with tags that reflected an unpredictable range of interests, including facial hair, the history of photography, and the fiction genre known as Steampunk. "There's all kinds of hidden value in our systems which you can't even understand until you open them up to see what people do with them," Mr. Shirky said. "The thing that drives me craziest in conversations with large institutions about large data sets is they want to know in advance what will happen. Why should we open up our data? To which the answer is, you open up your data to see where the value is. It's the value you can't even predict until you try it that you get back.""