On Twitter and his website, Incarcerated Bob has mentioned the Bears are "all over Jake Long and made an early offer".
If you aren't familiar with Incarcerated Bob, he's been breaking a lot of big things on Twitter for the last year or so, as well as trashing Mike Florio(to many people's amusement) in the process. He's hit on Manning to the Broncos, Mario Williams to the Bills, and more. I know a lot of people dont give credence to Twitter reporters, but he's been pretty on point for a while.
That said, if it is true, its just an offer, and it might not be anywhere near what Long is seeking. But its food for the rumor hungry