The China Vortex has this startling graph of Google China’s usage during the national moment of silence and mourning for the victims of the of the May 12 earthquake in Sichuan.

As David Weinberger notes, it is, eerily, like the inverse of a seismograph.
Popularity: 10% [?]
The choice of a web browser is an important one, because this software is the portal through which you experience the Internet. Most people never switch from the one that comes pre-installed on their computer, giving Microsoft’s Internet Explorer about an 80% share of the browser market. As you may have gathered from the big logo image over there, I am a Firefox user. There are many reasons why it’s my browser of choice but one of the biggest is it’s excellent (and free) selection of Add-ons. Add-ons (also called plug-ins) are small software programs that add various features that the parent program lacks. For example, I have an add-on installed called “IE Tab”, which allows Firefox to mimic Internet Explorer when it displays web pages. This is pretty handy when I’m developing web pages and want to check for compatibility between the two browsers. It can also be useful if you visit sites that were developed just for IE. Add-ons are cool and useful (though sometimes extremely geeky) and I want to share some of them with you that are installed on the various copies of Firefox that I use.
Popularity: 13% [?]
I search the Internet for useful stuff, so you don’t have to. This three part video series was produced by Palm Beach CAFE, a weekly show hosted by Lee Keller and Kim Cavanaugh. The show is created by the School District of Palm Beach County and provides an informal look at technology in education.
Many of our viewers are just starting out on the Internet and wanted to know some basics that will help them conquer the Internet. This series will get you started on understanding the Internet and making it work for you.
For more from Lee and Kim, you can watch part 2 and part 3 of this video series on YouTube. You can also help me out by letting me know in comments if you prefer videos embedded in the post (like part 1, above) or linked to their original source (like parts 2 and 3 on YouTube). If you can’t watch videos at all, please let me know that too.
Popularity: 15% [?]