Responsive Design Testing
Another browser-based tool for viewing the same site at different sizes, but this one displays them all the same time, side by side.
Link tags: resolutions
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ProtoFluid. Rapid Prototyping of Adaptive CSS and Responsive Design.
Another browser-based tool for testing your responsive designs at different screen sizes.
responsivepx - find that tricky breakpoint
Remy created this tool for resizing a viewport to figure out where to put the breakpoints in your media queries.
Screenfly by QuirkTools — Test Your Website at Different Screen Resolutions
A handy little service for viewing sites at different dimensions. Just be aware that it doesn’t actually emulate different devices.
Monkey Bites
A brilliant list of New Year's Resolutions for Coders.