Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
Uploading pictures to Flickr via its Web-based interface is a hassle, particularly if you have dozens of shots to upload. Linux users have a better choice, though, in the form of Kflickr, a simple application for uploading shots to Flickr that will have your family photos online in no time.
I don't do much editing or tweaking of photos -- I just dump pics from my camera straight to the desktop, then to Flickr. Sure, you can use digiKam, F-Spot, or any of the other photo management tools that are capable of uploading pics to Flickr, but in the spirit of good Unixy apps, I prefer a tool that does one thing and does it well.
Kflickr is included in several distros, but the version included with Ubuntu Feisty is a bit behind the upstream version, so I grabbed the package from the Kflickr site. There you'll find source tarballs and a Debian package of the most recent version -- 0.8 as I'm writing this -- and a list of distros that include Kflickr. The Debian package installed just fine on Feisty.