The site appeared to be flapping pretty hard for about an hour this morning, but seems to have settled out.
??? Translation? I've been up for 4 hours, no issues accessing TUG, no unusual usage in Google Analystics data (which does lag an hour or so).
For about an hour, it looked like I'd get a partial load of the main page, but parts were missing. Not sure exactly which chunks, but probably the CSS. I'd see a lot of text like thread titles and the like, but the formatting was completely wonky. Then some reloads would simply throw a "server not responding." I wish I'd caught a screenshot, but I was a little busy on the other window at the time, and just tried reloading at 5-10 minute intervals before it appeared to settle out. This was from about 8:20AM to about 9:10AM (GMT -0400)