As reported by Dave Biddle (@davebiddle). According to his twitter profile, he is "a sports journalist who covers Ohio State Buckeyes football and basketbal for Bucknuts.com."
"Could be some bad news on the horizon for OSU football. Hopefully none of this is true. Will report back when I know more."
"Possible improper benefits. Players meeting with compliance officials today."
EDIT: Just to keep all the relevant info in one spot... subsequent tweets:
"Word is a tattoo artist was giving out free tats in exchange for autographs from OSU players. Again, nothing has been confirmed."
"Just talked to a current player and he is denying that any of this is true. Says he would know about it b/c it would be 'locker room talk.'"
"OSU's sports information department is also denying that any players met with compliance officials today."