Do I need to ask permission to link to a website?
Answer
Linking directly to a webpage containing the content you wish to use is almost always permissible. Content linked to should include the full details of the creator and source of material.
If you have any reason to believe that the content was posted without the consent of the copyright owner, you should not include the link. You may suspect that content was posted without the consent of the copyright owner if the content is not consistent with the other content present on the website.
Note: This answer comes from the Saskatchewan Polytechnic Copyright website, and provides educational information, not legal advice.