There's no hard rule, but 1024 wide is generally good for most users' monitors these days. Don't let the upload sites resize for you - they'll probably use high compression to save bandwidth. If you have any kind of decent graphics app, you can use that, or the absolute easiest thing is to install the Image Resizer app from the XP Powertoys page. (don't know if that works with Vista though...)Is there a specific size guideline for posting pictures?