Examples of open source programming languages:
- Java
- Python
HTML is not really a programming language, it is a Markup Language, hence the ML in the name. Other examples of ML are XML, XHTML, SGML, etc.
But I don't know whether it would actually qualify for being open source or not. Usually open source means that the source for the ing is open to everyone (within a certain licence agreement).
The open source means that you get the source of the thing. For instance, Java allows you to download the source for the actual Objects and so forth that it uses to make programs.
You might want to do a search on open source to fully understand it.
http://search.yahoo.com/search?p=open+source
http://search.yahoo.com/search?p=open+source+description