Lisp, the Language

For some of our earliest AI applications we used the 'intelligent' language Lisp.   It was key for us to implement learning modules.   But have not seen much about it since then.    Was then intrigued to see this article about it.  Is there reason to consider it now for low level  AI applications?    In some cases, yes.  But does it have the support or libraries to leverage its use? Investigating that.  Someone out there know of current uses?