My most recent project at Google was Test Analytics, a tool for assessing risk in software projects. Test Analytics is built in Java, utilizing Google Web Toolkit for the frontend.
I’ve also independently developed several content sites, under the Amusive.com brand.  These sites, mostly developed between 1997 and 1999, attract over 2 million pageviews per month. These pages are primarily HTML and Perl, along with a smattering of PHP in some places. In late 1999 I rejected a “million dollar buyout” in shares of a company that never went public.
There’s also more information about my experience in my resume (pdf).