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I agree that "normal" is too small in many cases today, and has been for quite some time. The teensy font phenomenon is being dictated by the personal tastes of the graphic designer rather than the usability requirements of the audience.
If you want to defend against it in your browsing, you can use a browser such as Opera which has a fantastically useful "zoom" function built right in that no designer can circumvent.
You can also create your own user stylesheet and have it bypass the one the website serves up.