当youtube获得成功以后，各种专业的tube就雨后的大竹笋一样钻出来了，比如godtube。Dancejam是一个舞者的tube，大家把自己跳舞的视频传上来，互相看看，打打分，发表发表评论。

这些都是tube们的基本功能，而我最喜欢dancejam的“battles”——飙舞。两个舞者（团），分别演绎，你来选择谁更酷。哦，伟大的PK！

Can Touch This: DanceJam Opens To The Public

(via Techcrunch)  YouTube for dance videos Dancejam has launched into open beta today after several months of private testing.

DanceJam offers dance battles where users dance off against each other, with viewers voting on the best video. DanceJam also offers general dance videos, including locally uploaded content and videos from external sites such YouTube. Read more.

Tags: 社群网站web 2.0 by sawyer
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Google第一届“创新或者死亡(innovate or die)”大赛近日落下帷幕。这一届的命题是利用脚踏车这种装置，做出有意义的发明。命题是不是很宽泛？最终夺得冠军的是一个5人组合Aquaduct。他们的作品是一辆运水三轮车，为吃水困难的农村地区设计，那里的人们经常需要走几十里路去背水。这辆三轮车的最大特点是，设计了内部过滤装置，水运回来了，也就净化完了。请看下面的视频。

也许这个装置并不会得到推广，但是他们的行动让人佩服。更多方案见这里。

Google Contest Winner Delivers Clean Water via Bicycles

(via Gizmodo) You may not have heard of Google’s Innovate or Die competition, but it was a $5000 contest for coming up with a method to provide rural communities with water—an endeavor that doesn’t sound glorious, but is quite important to thirsty people. Aquaduct, the winning team, created a bicycle that can both help transport water quickly and easily, but clean that water at the same time!Read more.

Tags: 公益,Charity by sawyer
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