I have an image of the USA. I'm currently cutting it up into layers, one state per layer. I'd like to convert this into an image map, with all the glorious html around that.
The simplest way to create image maps from layers is to click on each layer and then select
New Layer Based Slice from the menus at the top of the screen. Once you have created a slice, you can use the
Slice Select Tool to select and modify the slice (adding things like URL, target window, etc.)