General rules for the use of the ThingLink service <ul> <li> You must not annotate and/or display (i) any material protected by copyright or other intellectual property rights without the prior approval of the respective rights holder, nor (ii) any illegal, offensive, threatening, libelous, defamatory, obscene or otherwise objectionable material, nor (iii) any material that may not be appropriate for all audiences (including pornography and other adult content). </li> <li>