I am new to SEO so my apologies if this question is overly simple.
One of my clients recieved a link request from a company who have websites A and B, both of which have a higher pagerank than my client's site. They want my client to link to A and will put a link to my client's site on B.
What I wondered was...
1. Is this seen by Google as ethical?
2. Would my client be penalised or would they benefit from this type of link?
Thanks in advance.