LS1tech server failing?
Internet Brands owns the site & servers, the site is located at their headquarters in California. They posted in the Moderator forum that they'd been having problems with their site balancer (a couple days ago) - an F5 unit. Other IB sites were having similar problems.
The problem seems to be OK right now, for about the past 2 hours. Before 11:15 AM Central Time, the site was really laggy. It's been OK for me since then though.

