Premium feature: images can be saved from a webpage to diigo online library via IE or firefox toolbar.
1) Just right-click on the picture when you surf on the internet and choose " save image to Diigo" in the pop-up menu.
Or clicking on the disk icon, the image will be uploaded to your library automatically.
2) To access your saved webpage images,go to My library >> Images
a Click desired image - captured image item is shown with original URL
b "Edit" allows you to add tags or share the image item to a list or group.
3) The saved image also plays a part of the whole bookmark.
As you can see,it shows up as annotation together with the original URl in library.