>A client wants the logo of a large corpration that they are partnered >with on their web site ... >So does this mean using the large corporations logo without express >permission, on my clients web site is in violation of copyright law? Yes. If your client has partnered with the large corporation, they may have been granted permission to use the logo in certain specific ways/instances. If you check the partnering agreement, you may be able to find where permission is granted. If not, either you or clients need to request permission to use the logo.