The NCAA has tried pulling this with Scout and Rivals, and has failed, and will continue to fail.  Recruiting coverage, available to the general public, is not a recruiting service. Recruiting coverage has the same protections as any other kind of journalism. You can't say "Scout and Rivals aren't allowed to talk to our coaches or recruits" and not also block the WSJ, NYT, Atlanta Journal-Constitution, USA Today, Parade, ESPN, etc. all of whom have begun covering recruiting extensively since the early 2000's.
They tried this around 2005-2006 and colleges started blacklisting our people even before the measure was voted on, fearful of post-facto violations. Scout's attorneys (along with Rivals') smacked them hard; the NCAA backed down quickly when we pointed out this was courting a 1st Amendment injunction and lawsuit, but also "well, ESPN will be disappointed to learn they no longer have access to college football programs either, since they're also a recruiting service under your definition". Maybe they're trying again, Jon may know, I'm pretty out of the game nowadays.
Part of the problem was the NCAA legal team, at least then, was not exactly cream of the crop (the NFL and MLB are another story). Look no further than their incompetence and outright misconduct in the Rick Neuheisel debacle in Seattle.