geocaching.com will be off-line for about 4 - 6 hours on Wednesday, May 4th, starting at 9:00 AM (PDT). So make sure you get all your pocket queries downloaded, and anything else you might need, before then.
Groundspeak promises the website will have an updated look, and site performance will be improved, after the maintenance has been completed. Hopefully this work will also resolve some of the issues we've all had to deal with recently.
If you find yourself a nervous wreck during the downtime, you can at least follow the progress of the upgrade on Groundspeak's Facebook and/or Twitter sites.