Selling images online: Uploading images to stock photo sites

Most microstock sites provide FTP uploading, and this is an option to choose if you want to upload large batches of images. If you don't have many images, you can use simple upload form directly on the site. The exception is iStockPhoto, which does not support FTP (and have low limits on uploading), but you can still save time by opening multiple windows and uploading several images at a time.