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由圣迭戈同名公司KidZui提供的这项服务声称它能向儿童们提供50万条与无害网站、图片和视频的链接，被链接的内容涵盖了从流行文化到科学、从搞笑作品和游戏到历史的诸多领域。儿童们通过这项服务可观看《美国偶像》(American Idol)的最新竞逐，了解有关恐龙的知识，探索历史或访问网娃(Webkinz)和企鹅俱乐部(Club Penguin)等知名儿童网站。

这项服务可以对儿童用以上网的电脑进行有选择的设置，以确保儿童不能脱离KidZui通过电脑的标准浏览器上网。父母可以将KidZui设置为电脑启动后自动以全屏模式出现在屏幕上。在这种模式下，KidZui能让那些可使用户转向或启动其他程序的按键、图标、指令和手法自动失效，或将其隐藏。

在这一系统内我可以登录《华尔街日报》的网站，并在站内搜索Spitzer(斯皮策)这个词，屏幕上立即出现了一则关于这位纽约州前州长性丑闻的报导。

Some specific types of sensory stimuli and activities, especially those that involve non-routine actions and thoughts, produce more of those chemicals that encourage growth of new dendrites and neurons in the brain. These are generally non-routine activities. Routines become so automatic that actions are done largely unconsciously (ever get up in the morning and walk to the bathroom before you're really conscious?). Such automated or unconscious actions require less activity in the brain, and exercise it less.

The situation is much the same in primates and rodents, where new neurons only appear in the hippocampus and olfactory bulb. In contrast, fish, reptiles and birds renew the neurons throughout their entire network and throughout their entire lives.

finished reading a deeply philosophical essay by Isaac Mao from The People’s Republic of China called “Sharism: A mind revolution.”  This essay is part of a collection of essays gathered by Joi Ito  to celebrate the power of Web 2.0 and “all the people who are willing to share.”  It was first brought to my attention by Will Richardson who reflected on Mao’s thoughts in his own blog last week as he lamented that there are still educators out there who are not willing to share their best teaching practices and lessons with others online (Nov. 18, 2008). 

在达成目标的过程中学习