According to a study, it suggests that the Internet is responsible in increasing young marriages (21-30 years old) these days. With the ease of broadband Internet penetration, and dating sites, these young folks have a better chance to find their potential partners.
Though the finding is still inconclusive, but it seems to be a correlation; the states in US that got broadband earlier, the marriage rates rose faster.
Anyway, you can read more from this article.