Personally I think Prolog is excellent for anything that can be thought of in rules and it's obviously strong in constraint solving situations. Most Prologs I

Personally I think Prolog is excellent for anything that can be thought of in rules and it's obviously strong in constraint solving situations. Most Prologs I have used are lacking in what I'd call "plumbing". I/O in particular feels fairly strange, web libraries etc. are low level (no MVC framework I'm aware of). A combination of Java and Prolog works quite well (technically any JVM language I suppose). Most Prologs provide a good Java connector (they usually also have C/C++, sometimes .NET and Python + sockets). Tomcat+JavaScript+HTML+CSS+database of choice and Prolog for the logic is a good combination.