That, of itself, also isn't newsworthy. What is newsworthy is the reason behind it, which has to do with corporate greed and very poor behavior on the part of some very big companies.
Two very big companies, to be exact. Level 3 Communications, an enormous and giddily spam-happy ISP, and Cogent Communications, an enormous and less spam-friendly ISP.
Cogent is pricing bandwidth very aggressively, and Level 3, they don't much care for that. So Level 3 has ended its Tier 1 peering agreement with Cogent.
Essentially, in quick and hopefully not too technical terms, it means that two of the biggest carriers of Internet traffic are not speaking to each other right now. What that means is that the Internet has been split; for many end users, there is no way for people on one side of the divide to reach Web sites on the other, and vice versa. For example, right now most RoadRunner customers cannot reach OK Cupid.
Level 3 has been known to do this sort of shit before; in fact, there's an article on Slashdot about it. Cogent is dealing with the problem by offering current Level 3 customers free connections to the Cogent network, on account of Level 3 being a bunch of mewling, lice-infested, pus-oozing filthy bastards and all.
Cogent Communications has released a statement about the issue. I can't read it, because I'm on the wrong side of the divide and can't reach Cogent's servers.
By all accounts I've seen, Level 3 is being a bunch of right bastards here.
So if you're having trouble reaching certain Web sites, that's why.
Edit: Less than ten minutes after posting this, OK Cupid became reachable. Clearly, I should have complained sooner!