Recently I've been having problems trying to look at old web pages preserved in the Wayback Machine (Archive.org). Sometimes it works just fine, but fairly regularly a page is very slow to load, and sometimes it gives a message that a problem was encountered and you should to try again later.
Also, for two of my sites it appears to have stopped preserving any page copies beginning in 2008, although the sites are still live on the web.
This has caused me to wonder if the Wayback Machine's resources are being strained to the point that it can no longer keep up with the growth of the web. Has anyone heard anything about this?