I am writing an article comparing three pieces of software. I have taken screen shots of all of them and would like to use them in a non-open access article. Given the intended journal, there is a reasonable chance of the images being on the cover. What are the copyright issues associated with screen shots?
Specifically, one of the pieces of software is free and open source (GPL v2), and two are free as in beer, but closed source with unknown licenses and no EULAs. To further complicate matters one of the closed sourced pieces of software looks and functions very much like a proprietary piece of hardware produced by a massive company. Three years ago I contacted the developer of the software and asked about using a screen shot and he said it was fine. The software is still widely available, but the direct download from the developers site now has text indicating that the massive company has "requested" that it be taken down. I own the physical hardware and am not aware of any crazy licensing restrictions. I could use a photo of the physical hardware if that is better.