I just have to point this out as stunningly stupid. This is the home page for a huge, multinational company.
Look at the picture above. If you click the link for “United States” on the bottom right there, you actually get a modal dialog box asking you: “Go to United States?”
Um, yes.
A quick peek behind the scenes at their code pointed up that they use the modal confirmation bit as a way of setting the correct language for the visitor (note how they "misspell" Iraq also). I'm sure they could have found a more creative way to get the job done - but they're working with Vignette.