IrfanView is a fast and simple image viewer and editor that supports all major graphic formats, including BMP, DIB, JPEG, GIF, animated GIF, PNG, PCX, multipage TIFF, and TGA. In addition, it features drag-and-drop support, directory viewing, TWAIN support, slide shows, batch conversion, and modifications, such as color depth, crop, blur, and sharpen.
Here's a few tips on saving your photos for the web, and the BB in particular.
1. If your image is a photograph with more than 240 colors, save it as a .jpg. If it is artwork with only a few colors, a .gif is the way to go.
2. Save your image at 72dpi. Any higher resolution just isn't needed for a monitor.
3. Keep your image under 500 pixels in width.
4. If using a jpg, always compress it before saving it for the web. I usually save my images at 75% their original file size. You'll be amazed how much your file size is reduced without any loss of quality. It will load faster and reduce bandwidth use at our end.