Depends what you want to use Perl for. I find that Perl is great for server applications that need to run constantly, or need to perform a lot of complex actions on data.
You can use it for building websites with an Apache module, but I would recommend to use PHP instead as it comes with a whole library of useful functions for every day use.
The last thing I made in Perl was a MUD server with a custom C++ client for it. You can see some screenshots+info at http://atomiku.com/about-teromud/