Please excuse the naivete, but how does Google (or anyone else) know that the link comes from a university professor? Are these links from .edu domains? This is of real interest to me, since I am a university professor and my website, though entirely an individual endeavor, is closely enough related to my teaching and research activities to merit a link from, e.g., an appropriate online syllabus. While I'd never compromise my academic integrity, does this thread mean that a link to my personal site from my university site would help my Google ranking? Or am I misunderstanding something? Many thanks in advance.