20:24 谷歌Chromium OS 开源项目发布 » 谷歌中文网站站长博客
发表者:谷歌产品经理凯撒•桑古塔(Caesar Sengupta),工程总监马修•帕巴基波斯(Matt Papakipos)

今年七月,我们宣布正在研发谷歌Chrome OS操作系统,这是一个专为深度使用网络的用户而设的开源操作系统。

今天我们发布的这个开源项目叫做Chromium OS。我们之所以在谷歌Chrome OS操作系统正式对用户开放之前几乎提前一年这样做,是因为渴望与合作伙伴、开源社区和第三方开发者通力合作。如同谷歌Chrome浏览器一样,从现在起开发人员就可以自由参与开发过程。这就意味着这些免费的代码将面向所有人开放,并欢迎公众为其添砖加瓦。现有的Chromium OS项目包括了我们当前的代码库(http://www.chromium.org/chromium-os/building-chromium-os/getting-the-chromium-os-source-code)、实验性质的用户界面(http://www.chromium.org/chromium-os/user-experience)和一些初步的设计(http://www.chromium.org/chromium-os/chromiumos-design-docs),开发人员可以以此为基础进行进一步的完善。此次发布的只是雏型,在接下来的一年时间里,我们会对它进行“润色”。

我们想借此机会向大家解释我们为何如此热衷于这个项目以及它与当前计算模式有何根本区别。

首先,一切皆基于网络。所有的应用程序都是网络应用程序。所有体验都在浏览器内进行,不再需要传统的桌面应用程序。这就意味着再也没有复杂的安装过程,再也不用管理任何程序,再也不用为更新软件而烦心。

其次,由于所有应用程序都存在于浏览器内,这对于提高安全性能大有裨益。不同于传统的操作系统,Chrome OS操作系统不完全信赖你所运行的应用程序,所以每一个应用程序都在一个安全沙盒中运行,这就限制了恶意程序入侵您的电脑的能力。此外,Chrome OS操作系统也不完全相信自己,所以每当您重启电脑,Chrome OS操作系统便会确认其代码的完整性,如果您的系统已经被侵入,它就会自动修复并重启。诚然,没有一台电脑是绝对安全的,我们只是尽量让恶意的人更难得手(也更加无利可图)。如果您想了解安全问题,请阅读Chrome操作系统安全综述(http://www.chromium.org/chromium-os/chromiumos-design-docs/security-overview)或观看视频(http://www.youtube.com/watch?v=A9WVmNfgjtQ)。

最后,速度是我们关注的第一要务。我们正在剔除任何不必要的进程,对大量操作进行优化,并竭尽所能让程序并行运行。这就意味着开机几秒钟之内就能上网冲浪。同时,我们对速度的追求已经全面扩展到硬件。我们明确规定了硬件组件的参考规范,以为谷歌Chrome OS操作系统提供最快速的体验。

我们仍有许多工作需要完成,我们热切盼望能与开源社区合作。我们从GNU、Linux Kernel、Moblin、Ubuntu和WebKit及其他项目的合作中获益匪浅。我们将反过来向这些项目贡献代码,并且与开源社区密切合作。

谷歌Chrome OS操作系统将于明年此时正式发布。敬请关注(https://services.google.com/fb/forms/googlechromeossignup/),了解最新动态。如果您想基于源代码编译自己的操作系统,可通过chromium.org(http://www.chromium.org)加入我们。
09:00 Depth and Discovery: Powering Visualizations with the Google Analytics API » Google Analytics Blog
We're always really excited to see what developers are building with Google Analytics. Here's an amazing visualization using the API from our friends at Juice Analytics. Now, this is what we're talking about when we say this stuff is "Off the charts!" (The API team t-shirt slogan). :-)

At Juice, we work with web analytics APIs large and small, from Google, comScore and Omniture. The Google Analytics API is our favorite. It powers the world's best, most widely deployed analytics site. And it powers Juice products like Concentrate (innovative search analytics) and Vasco de Gapi (a tool for exploring the Google Analytics API).

We were approached by the Google Analytics API team to explore new ways of looking at data with the API, and we were excited by the possibilities. We've been working on our own visualization framework, JuiceKit, that integrates the power of the Flare Visualization Library with Adobe Flex.

The result is Analytics Visualizations, two visualizations powered by the Google Analytics API that are free to use. You just need a Google account with access to Google Analytics data to explore your own data. Here are the details about the visualizations, called Referrer Flow and Keyword Tree.

Referrer Flow

Curious about what sites are linking to you and what content is benefitting the most? The Referrer Flow visualization answers those question and shows how results change over time. It's a stream of daily treemaps showing pageviews and bounce rates for various groupings of your website's pages. You can group by combinations of page title, referrer and url.
Here is a brief video introduction:



Clicking on the treemap will filter all the data by the page, referrer or url that you clicked on. Click again to clear your filter.

Keyword Tree

A list of top keywords isn't enough to really understand how people are searching and finding your site. The Keyword Tree visualization displays the most frequently used search keywords and how they are used together. Here's a video overview:



You'll see a frequently used search term at the center and the words and phrases that are most often used in combination with that word. Pick a different starting word by typing into the box in the upper right or selecting from the top word across the bottom of the screen. The words are sized by their frequency of use and colored by bounce rate (or % new visitors or average time on site). Roll over a word to see details about that combination of connected words.

Depth and Discovery

In designing these visualizations we focused on the question: how can we let users uncover the unexpected? That means designing targeted visualizations focused on limited well-defined issues. The Referrer Flow monomaniacally focuses on a single question "What pages are people viewing on your site and where are they coming from?" The Keyword Tree is laser-focused on word ordering and what that means for keyword performance.


The Google Analytics reporting tool is a great general-purpose reporting solution. It gives the advanced users everything they need to answer specific questions. However, its generality means it has limited ability to focus on two issues; depth and discovery.

The Google Analytics API is Google's solution to this problem. It's an opportunity both for businesses like ours that can create new ways of analyzing data, and for large sites that can use the API for integration, custom analytics, and more.


Thanks, Juice! We continue to be impressed by the new solutions developers are bringing to market by leveraging the Google Analytics Platform. If you have developed a useful new tool or integration on top of Google Analytics, drop us an email at analytics-api@google.com. If it's innovative and useful we'll highlight it to our readers on this blog.


QQ邮箱更新日记-2009年11月19日QQ邮箱团队 » 车东's shared items in Google Reader
QQ邮箱更新日记-2009年11月19日
  • 域名邮箱

    不少朋友想使用域名邮箱服务,但自身没有域名,也不知道该如何注册域名。为此,域名邮箱和新网合作,给这些朋友提供快捷的域名注册、域名邮箱创建的一站式服务。如果您还没有域名,又想创建域名邮箱,请点击“在此注册域名并创建域名邮箱”,然后按照页面引导完成设置过程。



    注册域名时,域名服务商需要收取一定的注册费用,而域名邮箱服务是免费的。新网为大家提供了较优惠的价格:.com.cn/.cn域名首年8元,.com/.net域名首年55元。

  • 阅读空间升级

    阅读空间分为三大部分:“广播”、“好友日志”和“我的订阅”。



    新功能“广播”,是个微型博客。您可以写一句话,推荐一篇文章或一段视频,分享给关注您的好友,好友可对分享内容进行评论。同时,在这里也可看到所有您关注的好友分享出来的信息。
    我们期望,广播能够让分享和阅读更加便捷。



  • 定时发送支持农历

    因为国人惯用农历,为了方便一些网友希望在亲朋好友生日或某些传统节日,给对方送去一份惊喜,定时发送支持农历设置。



  • 自动转发增加验证环节

    为避免不友善转发对接收邮箱造成骚扰,自动转发需要接收方验证允许后才生效。


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