Apple does not allow it. I have emailed a request to Apple to allow it on Weebly but, so far, have not heard back. Their marketing guidelines say this: "f you create marketing material for the web or onscreen communication, use the iBooks badge artwork in the SVG format. If possible, use the high-resolution artwork in the SVG format for websites." The first sentence seems final, but the second seems to leave a possible opening, thus my question and request to Apple. I did create a png, but I checked the community to see if there were opinions. The thread I found supported the idea that the logo could not be used on Weebly. Apple does say that you may not "change the artwork in any way." That, too, is a little vague. Does it only mean "make it look different" or does it also disallow changing the format? All I know is that they have a lot of lawyers. This is where the info is:
https://www.apple.com/itunes/marketing-your-books-on-ibooks/marketing-guidelines.html#ibooks-badge
