Thanks. Here is (some) of the information you requested.
I tried reading the man pages for netstat and I'm still not sure I have issued the command with the correct options - I tried several. It's still not obvious to me what is holding port 80 open. I would be happy to post some of the output if requested. There is no output (other than the column heading) if I simply issue netstat without options.
I have not installed HTop but did try running top. It is not obvious to me that there is a process that is hanging - how could I tell?
I installed Apache during the fc6 install (essentially following the "Installing a LAMP System with Fedora Core 6" how-to on how-to-forge). I may have may configuration changes but I don't think so (sorry to be so vague). I could post the httpd.conf file if that would be helpful. Here is the result of httpd -V
[root@gnlewis log]# /usr/sbin/httpd -V
Server version: Apache/2.2.6 (Unix)
Server built: Sep 18 2007 11:26:13
Server's Module Magic Number: 20051115:5
Server loaded: APR 1.2.7, APR-Util 1.2.8
Compiled using: APR 1.2.7, APR-Util 1.2.8
Server MPM: Prefork
forked: yes (variable process count)
Server compiled with....
-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
Thanks again for your help.