To see what repository a package was installed via in Ubuntu using apt, use this command:
$ apt-cache policy packagename

Example:

$ apt-cache policy firefox
firefox:
  Installed: 3.0.3+build1+nobinonly-0ubuntu0.8.04.1
  Candidate: 3.0.3+build1+nobinonly-0ubuntu0.8.04.1
  Version table:
 *** 3.0.3+build1+nobinonly-0ubuntu0.8.04.1 0
        500 http://security.ubuntu.com hardy-security/main Packages
        100 /var/lib/dpkg/status
     3.0.2+build6+nobinonly-0ubuntu0.8.04.1 0
        500 http://archive.ubuntu.com hardy-updates/main Packages
     3.0~b5+nobinonly-0ubuntu3 0
        500 http://archive.ubuntu.com hardy/main Packages

These instructions will configure Firefox to use Gmail or your Google Apps hosting account to handle mailto links:

First, type about:config in the address bar, search for gecko.handlerService.allowRegisterFromDifferentHost, and set the value to true.

Then, log into GMail or your Google Apps mail URL, paste this line of JavaScript into your address bar, and hit enter:
For Gmail:
javascript:window.navigator.registerProtocolHandler("mailto","https://mail.google.com/mail/?extsrc=mailto&url=%s","GMail")

For Google Apps:
javascript:window.navigator.registerProtocolHandler("mailto","https://mail.google.com/a/example.com/mail/?extsrc=mailto&url=%s","GMail")
Replace “example.com” with your domain.

After you hit enter, Firefox should ask permission to add Gmail as the default mailto handler.

To undo this, click Edit Preferences > Applications. Search for mailto. Choose Application Details from dropdown under Actions. Highlight Gmail and click Remove.

I used these instructions on Firefox 3.0.1 on Ubuntu 8.10. This post was compiled from info found in this article and its comments at lifehacker.com.

I have just finished writing my first Wordpress plugin – a widget to display a status update via Ping.fm:

Ping.fm is a simple service that makes updating your social networks a snap. You can use AIM, GTalk, iGoogle, Windows Live Messenger, Yahoo! Messenger, WAP, iPhone/iPod Touch, SMS or E-mail to let Ping.fm relay your message to a multitude of social networking sites. This plugin lets you use Ping.fm to add your status to your Wordpress Blog’s sidebar via Ping.fm’s “Custom URL” integration.

== Installation ==

* Extract archive
* Upload entire ‘pingfm_status’ directory to ‘wordpress/wp-content/plugins’
— do not remove files from directory, upload the directory with all files in it
* At http://ping.fm create a Custom URL to update the following address:

http://url_to_your_wordpress_installation/wp-content/plugins/pingfm_status/pingfm_post.php

* Enable the plugin in your Wordpress admin section
* Add pingfm widget to your sidebar, set the Title

== Notes ==

If you notice that the timezone is incorrect on the timestamps that appear in your updates,
you can change it in ‘/wp-content/plugins/pingfm_status/pingfm_post.php’. I have included
some notes in that file.

Here is a link to the plugin in the Wordpress Plugin Directory.

Here is video of my 6 year old son Collin popping wheelies on his bicycle. I edited the video in Kino and Avidemux.