Well, the boys over at the BIM & BEAM blog have stated that the www.extensions4revit.com site is up and running again. But now there is a difference, those wanting to grab hold of the latest extensions for Revit Structure will now have to trek over to the Autodesk subscription site, log in, and there you will find the new, single pack, version of the latest Extensions.
Gone are hassles with downloading a bunch of little apps, now one download and install will get you everything they have to offer. If you have not tried the extensions (and you use RST), you should give them a whirl. I especially like the Grid and Level Generator.