Could not get to my site via my pointed domain name. Direct URL works fine. Contacted my host, who replied with this:
Did you recently upgrade or change any code? Here is the error : [Sun Sep 26 11:02:36 2010] [error] [client 18.104.22.168] Request exceeded the limit of 10 internal redirects due to probable configuration error. Use 'LimitInternalRecursion' to increase the limit if necessary. Use 'LogLevel debug' to get a backtrace., referer: http://www.inkmusings.com/ Basically, htaccess or your script are creating unlimited redirects in a loop
Deactivated W3 Total Cache and the problem went away. So clearly something happening in the .htaccess causing the redirect loop frenzy.