I've always preferred fixed-width layouts over fluid-width layouts, one of the main reasons is that I'm able to better understand how the whole picture will be without having to worry about the screen resolution.
But now the "picture" has changed, there is a high discrepancy between the lowest and highest resolutions used by most users nowadays and they seem to be here to stay.
I've a netbook that only supports 800 pixels or 1024 pixels wide; I also have a 22" monitor that supports 1650 pixels and, 24" monitors that support 1920 pixels and more are becoming pretty common.
I've pretty much "ignored" the 800 pixels users for some time and I've been developing with fixed 950/960 pixels wide, I also notice that popular sites (SO for one) either use this approach or the fluid one.
For text (almost) only websites (like Wikipedia) I don't see a problem using the fluid system but what about all the other websites that depend on images / video to create interesting content? Social Networks, Classifieds, and so on... What is (will be) their approach to address this issue?
Seam Carving seems like a good option for the near future but it hasn't matured enough (neither browsers nor jQuery nativelly support it at this point in time), I also feel like users wouldn't understand it, get confused with it and as a consequence abandon the website.
The de facto standard on the web is still 1024 pixels wide, and leaving 980 pixels unused in a 24" monitor just seems plain odd not to say wrong. So what are our options?
I would love to hear what you think about this and your experiences with both fluid and fixed systems.
PS: Popular websites using either one of these systems are also welcome, I'm specially interested in seeing non-text websites that use the fluid system.
EDIT: I just saw this answer and I got kinda confused about the difference between fluid and liquid layouts, aren't they supposed to be exactly the same?