We work with most programming languages. For websites, we use both ASP and PHP. We have shifted focus from ASP to PHP as we have found portability and security to be easier with PHP.
We work with MySQL, MS SQL, and PostgresQL. We can develop for other database platforms as well, but prefer to work with a server based database due to stability.
We also have experience in developing high traffic client server applications like toolbars. A toolbar application can feed millions of people information and is generally under heavy load.