WWW to OnLine

Greetings If I were to nominate the hottest topic on my list of issues today, it is definitely "How to set up a WWW interface to an OnLine instance?". I know this is becoming a well worn subject, but my records of the various answers are a little dated and not all that thorough. I've heard about - but no experienced - using Perl and setting up a 'back end to HTML' to generate SQL. If you've done this and have a reasonably thorough document for reproducing the task, please drop me a note. Adam