Your photographs are copyrighted the moment you press the shutter. You don't need to do anything. There are extra protection in registering them, but that isn't realistic for most of us. But, it probably doesn't matter, here is how eBay gets around it:
9. Content
When you provide content using our Services (directly or indirectly), you grant us a non-exclusive, worldwide, perpetual, irrevocable, royalty-free, sublicensable (through multiple tiers) right to exercise any and all Intellectual Property Rights you have in that content in connection with our provision, expansion, and promotion of our Services, in any media known now or developed in the future. To the fullest extent permitted under applicable law, you waive your right to enforce your Intellectual Property Rights in that content against eBay, our assignees, our sublicensees, and their assignees in connection with our, those assignees', and those sublicensees' use of that content in connection with our provision, expansion, and promotion of our Services.
You represent and warrant that, for all such content you provide, you own or otherwise control all necessary rights to do so and to meet your obligations under this User Agreement. You represent and warrant that such content is accurate. You represent and warrant that use of any such content (including derivative works) by us, our users, or others in contract with us, and in compliance with this User Agreement, does not and will not infringe any Intellectual Property Rights of any third party. eBay takes no responsibility and assumes no liability for any content provided by you or any third party.
