mod_perl alternatives

Given the recent discussion on the need for mod_perl PMC members and the 
disclosure that there is no active development on mod_perl this seems 
like an appropriate time to start a thread on a discussion of mod_perl 
alternatives inline with the various means of using mod_perl from the 
low level use of interfacing with the Apache server to the quick and 
dirty stuff (ModPerl::PerlRun, I believe to keep Perl and modules in 
memory).

I've seen mod_fcgid proposed in posts on other forums. Has anyone played 
with alternatives? I expect the low level Apache interaction might be 
difficult to duplicate at least to continue to do so in Perl. Perhaps 
the ModPerl::PerlRun approach of keeping Perl and modules in memory is a 
potential starting point for discussion for those using mod_perl at the 
most basic level.

Jim