As of version 5 and greater, Photoshop includes a very handy Save for Web command. This feature allows you to produce a copy of your image that is optimised for web use. This means that the image file will be as small as possible, and that the image will use only web-safe colours (if desired). Save for Web can produce GIF, JPEG, or PNG format images.
Here's how to go about making an automated photo web gallery in photoshop. It's not the *prettiest* thing, but it's awesome for creating the template files (the pages, resize images, thumbnails, links, etc.) Basically, it does all of the grunt work for you so all that's left is the fun part!
This tutorial is mainly supposed to teach you how to get the pixel borders implanted into your html document. This can be done in many ways, using different techniques.
Ever wondered how to make a tiled web page background where one tile joins perfectly with the next? This tutorial shows how to make a tiled web page background which has no visible tiling lines.