On this website you can search cases of NCAA violations using a variety of factors, like which violation or even keywords: https://web1.ncaa.org/LSDBi/exec/miSearch. It's pretty cool.
If there are any MGoBlogers out there with extra time and an interest in seeing how Tresselgate could/should go down, an analysis of similar situations would be awesome. A diary of it would be worth paying for.
 - OSU should be looking at violations for: (1) failure to report knowledge of violations; (2) unethical conduct; (3) failure to monitor; (4) ineligible participation; and (5) failure to withold ineligible student-athletes from competition. They could be looking at: lack of institutional control it those emails were forwarded (which seems to be the case from Tressel's "uh-huh" response to the reporter's question before Smith shut him up).