Wikipedia may be saving bandwidth, but that's not the real reason they're switching to SVG for logos. They're doing it because SVGs can be more accurate versus a PNG or JPG version, and because it scales much better.<p>Take a look at the template {{Should be SVG}} (<a href="http://en.wikipedia.org/wiki/Template:Should_be_SVG" rel="nofollow">http://en.wikipedia.org/wiki/Template:Should_be_SVG</a>): it says "This image was uploaded in a raster graphics format such as PNG, GIF, or JPEG. However, it contains information that could be stored more efficiently and/or accurately in the SVG format, as a vector graphic."<p>Also, whenever you go to an article that displays an SVG image, it's actually a PNG rendering. It's only when you view the actual file that you see the SVG. Take a look at the United States article, for example. The image of the flag at the top is actually //upload.wikimedia.org/wikipedia/commons/thumb/e/e2/Flag_of_the_United_States_%28Pantone%29.svg/125px-Flag_of_the_United_States_%28Pantone%29.svg.png, not the SVG itself.