This isn't strictly a Lightroom question. However, I mostly use Lightroom for creating jpegs from Tiff or Raw files. My website provider suggests that I limit the file size of horizontal images to 120kb, and vertical images to 70kb. The constraints of the images are 920 pixels wide by 560 pixels high. I use a Canon 5dII, so the files are big. I find that with some images I can't get anywhere near to the recommended file sizes without serious jpeg compression artifacts, which, to me, are unacceptable for high quality work. So, I go ahead and use much larger file sizes, sometimes as much as 400 to 500kb, using a Lightroom quality setting of maybe 80 to 90. This doesn't seem to create slow loading of my website with my medium fast cable internet connection, but I am concerned about what other viewers, who may be on slower connections, are experiencing. I have tried a dual step downsizing process in Photoshop, advocated by someone who works with medium format digital images, but that didn't seem to offer any significant benefit for the extra work involved. Any other suggestions for creating acceptable quality jpegs for websites at the specified image and file sizes?