Comix: A Good .cbr Comic Book Reader for Ubuntu

An good little .cbr comic book archive reader for Ubuntu (or for any other Linux distro at that) is Comix, a lightweight and free image archive viewer by Pontus Ekberg, a computer science student from Sweden.

It has all the normal stuff (as well as a ton more) that you would expect from a comic book reader, including:

Fullscreen mode.
Double page mode.
Fit image to window width, height or both.
Rotation and mirroring.
Magnifying glass.
Image enhancements.
Both left-to-right and right-to-left reading modes.
Bookmarks support.
Archive comments support.
Archive editor.
Comic book library.
Reads most common image formats.
Reads ZIP and tar archives natively, and RAR archives through the unrar program.
Runs on Linux, *BSD and virtually any other UNIX-like OS.