The Seahawks don't run a ton of 'college' style plays outside of a few basic read option plays and the Percy Harvin jet sweep, but with an upcoming season where Harvin will ostensibly be healthy, it might be worthwhile to learn about some of the wrinkles the college game is doing with the read-option.
FishDuck.com is dedicated to Oregon football (sorry Husky fans) and they do some really excellent work on X's and O's breakdowns. Like Oregon, Seattle does a lot of their zone-read stuff out of a zone-blocked front, so there are parallels to Oregon's offense and that of Seattle.
Here's Charles Fischer explaining the Sweep Read, which may be a wrinkle we see the Seahawks use next year with Harvin and/or Marshawn Lynch/Christine Michael. Or not. Either way, it's interesting, well explained and illustrated.