DescentBB

Keep them sanely sized, in width and length and file size. In general, keep the file sizes for embedded images under 500K, width under around 800 pixels.

other wise link them.

Also note that most image hosting sites these days supply code for posting thumbnails that link back to the full image, they can make dealing with larger images much more convenient.

On this subject, I have added a new bbcode tag which will automatically resize an image to thumbnail size and then link back to the full size image if you click the thumbnail: The thumbnails will be no wider than 300 pixels or no taller than 225 pixels. Note that it does *not* generate an actual separate thumbnail image, when you use it the original full file size image is loaded and just resized by your browser, so keep that in mind when posting images with large file sizes.