LJ has been under a massive Denial of Service attack, for the second time this year. Most of the fuss seems to have died down at this point, but they're still mopping up the aftermath and pages may not be loading correctly.

You may want to bookmark http://status.livejournal.org/, though actual status updates over there are fairly slow in coming and one is more likely to find the most up-to-date information about LJ's status on Dreamwidth these days.