What do you use?

My site uses html, and only html - well, once in awhile i use dhtml so that would include javascript too i suppose, but that is in infrequent.

Is that a bad thing? ...I'm not very good at other programming languages.

I wouldn't say it's a bad thing - if you're happy with the way things are working for you then there's nothing wrong with only using HTML. However, if you want to get a "real job" in the industry it's another story...

My sites use HTML, SSI, CSS and Javascript right now. I am going to start learing PHP (probably - still haven't decided between ASP and PHP). But I will learn it! It will help my career a lot not to mention making content management a heck of a lot easier (I hope!)

I don't really have a site of my own. But I do work on several sites that are owned my family members. All the sites are on *nix boxes.

CGI/Perl - Not much, if at all. Most have been converted to PHP.
HTML - Not many .html files. But we do, of course, print (or echo) HTML in our .php files.
JavaScript - Scattered here and there.
PHP - The heart of most of our sites. Linked to a DB, these sites are very powerful.

Lately, we've been trying to add dynamic graphs in some places using PHP's GD library. I love making them, but it's hard to find somewhere that we could use a graph to display some data. (anyone need a graph out there?)

An interesting article on PHP... here

Jeesh - I wish I would have known that PHP could do that a year ago! I was working on an Accounting learnware project (involving some graphing) and the boss hired this CS student to do the 'programming" - of course, all this kid knew was a bit of Java, so the boss insisted that we do the graphs etc. in Java applets without even investigate the alternatives (which I tried to do because I hate java applets!). Now I know we could have done it in PHP or possibly with Flash. Jeesh.