It can be considered contributory copyright infringement if you're knowingly linking to copyright infringing material.
In the US, abiding by any DMCA takedown notices is enough to be fairly certain you are not going to be in trouble for contributory infringement. That's how Google covers itself.
In the US, abiding by any DMCA takedown notices is enough to be fairly certain you are not going to be in trouble for contributory infringement. That's how Google covers itself.