I like to use control plus the mouse wheel to zoom in/out in the web browser -- not sure if this is what you mean by zooming. One feature I like about Ubuntu's

I like to use control plus the mouse wheel to zoom in/out in the web browser -- not sure if this is what you mean by zooming. One feature I like about Ubuntu's 3D-accelerated window manager is that it can zoom windows -- which is different from maximizing them because it makes everything (including menus, etc.) proportionally larger. So the "Windows key plus R" zooms until the focused window fills the screen. Win+1 zooms to standard desktop size, Win+2 zooms to double size, and Win+3 zooms to quadruple size, which are great for watching Flash movies that don't have a fullscreen option.