That is a quite interesting source and I thought in creating an account. But then I had a closer look onto the terms of use. Below you find an extract: 6. Your User Contribution and Conduct A. As a Colnect account holder you may submit relevant content. Adding items to the catalogs, editing the catalogs, adding item comments, translations, posting in the forums or sending private messages are collectively referred to as "User Contributions." You understand that Colnect does not guarantee any confidentiality with respect to any User Contributions. B. You shall be solely responsible for your own User Contributions and the consequences of posting or publishing them. In connection with User Contributions, you affirm, represent, and/or warrant that: you own or have the necessary licenses, rights, consents, and permissions to use and authorize Colnect to use all patent, trademark, trade secret, copyright or other proprietary rights in and to any and all User Contributions to enable inclusion and use of the User Contributions in the manner contemplated by the Website and these Terms of Service. That sounds ok for me. But then I read that part: C. For clarity, you waive all of your ownership rights in your User Contributions. [...] This makes a membership unattractive in my point of view. Suggestions? What do you think?