I recently took an online introductory WordPress course in preparation for starting my blog. In a lecture on optimizing images, the instructor recommended storing images of a certain resolution and file size. Otherwise, you risk quickly fill up your hosting space. The first thought that came to mind was, can you store images elsewhere and use links to point to those images? I learned about using the technique through my frequent use of Linux forums. I learned about a site called PostImage from a Linux forum I used to frequent. PostImage is what I have used to store images for forum posts, utilizing forum thumbnail links. Couldn’t you use a…