A growing list of links to all the web sites of quilt shops in the world on this site, not necessarily with scanned swatches. These are the manufacturers of fabrics supplied to shops and designers - not for retail purchase directly, but most show new fabrics and list retailers. Well organized, opening page with thumbnails leads to more detail and ability to click to see larger fabric swatch scan. Easy to browse and JPGs fast loading. A wide range of many fabric types here.
Thumbnails link to larger images and more fabric details.
This Ohio shop has a huge index of digital images of fabrics. There is a list to click on and load fabrics which you want to see and they have thoughtfully limited the swatch scans to 4-8 per page for faster loading. Lots of fabrics, I find the need to click in frames on EACH colorway a bit tedious, but the selection is broad and worth exploring. Jinny Beyer Fabric Designs Jinny's site shows her newest fabric designs and tips on using them. Fun breezy text page leads to various fabric scans.