Ubuntu Software List

     Its been almost a year now, and I've essentially converted completely over to Ubuntu.  One of the major factors that has assisted in this transition has been the abundance of software I have found that is cross compatible between Linux and Windows, and that happen to be open source.  So, I figured I'd help out those searching to make the switch from Windows to Ubuntu by providing a list of these softwares and where to download them.
     So, to start of this list, I've got a list of programs developed by Google, and we'll move on from there:

Picasa 3
http://picasa.google.com/linux/

Google Earth
http://www.google.com/earth/index.html

Google Chrome
https://tools.google.com/chrome

Google Voice
https://www.google.com/chat/video

Filezilla
http://filezilla-project.org/
(I suggest using Ubuntu's repository to download)

HP Linux Driver
http://hplipopensource.com/hplip-web/index.html

Blender
http://www.blender.org/

The Gimp
http://www.gimp.org/

Skype
http://www.skype.com/intl/en-us/get-skype/on-your-computer/linux/

Scribus
http://wiki.scribus.net/canvas/Download
(I suggest using the Ubuntu repository)

Inkscape
http://inkscape.org/
(I suggest using the Ubuntu repository)

Thunderbird
http://www.mozillamessaging.com/en-US/thunderbird/
(Once again I suggest using the Ubuntu repository)

Firefox
http://www.mozilla.com/en-US/firefox/new/
(Ubuntu repository suggested)

Vuze
http://www.vuze.com/download
(Ubuntu repository suggested)

IBM Lotus Symphony
http://www-03.ibm.com/software/lotus/symphony/home.nsf/home

Adobe Reader
http://get.adobe.com/reader/
(Not actually open source, but preferred for reading PDF)

Eclipse
http://www.eclipse.org/

Update 09-22-2011

Here are a couple of other programs you can enjoy both on Ubuntu or Windows, and even Mac for some of them:

XBMC
http://xbmc.org
(difficult to install on the latest Ubuntu if you don't know what you're doing, but so worth it if you're setting up an HTPC.)

Miro Internet TV
http://www.getmiro.com
(use the repo!)

VLC Media Player
http://videolan.org/vlc/
(use the repo)

I hope that this list of cross-platform softwares has helped any of you trying to make the switch over to Linux, but are left pining for the familiarity of windows.  If you have any questions, feel free to leave a comment, or e-mail me at andrew@digitalfruit.biz.  I'll be glad to share some pointers.