It took just a few paragraphs in a budget bill for Congress to open a new frontier in education: Colleges will no longer be required to deliver at least half their courses on a campus instead of online to qualify for federal student aid. That change is expected to be of enormous value to the commercial education industry. Although both for-profit colleges and traditional ones have expanded their Internet and online offerings in recent years, only a few dozen universities are fully Internet-based, and most of them are for-profit ones. The provision is just one sign of how an industry that once had a dubious reputation has gained new influence, with well-connected friends in the government and many congressional Republicans sympathetic to their entrepreneurial ethic. The Bush administration supported lifting the restriction on online education as a way to reach nontraditional students. Nonprofit universities and colleges opposed such a broad change, with some academics saying there was no proof that online education was effective. But for-profit colleges sought the rollback avidly.