Lisp Bazaar

2 minute read

Has anybody else noticed that PodBazaar, (the site that aims to be the premier site for Indian podcasts), was created using Lisp!?


Manu says:

Amazing !

Does Yahoo! Store. still use Lisp ?

Swaroop says:


Does Yahoo! Store. still use Lisp ?

Nope, that was a *long* time ago. It's probably PHP now.

Aarthi says:

Cool! I didn't know this!

Pramod Biligiri says:

Wow! I wonder how the code for a Lisp based web app looks like, considering the language is supposed to be so good.

Swaroop says:

@Aarthi: What's cooler is that I didn't know such modern database wrapper libraries and regular expression libraries existed for CLisp :-)

@Pramod: I'm curious on how the code looks like, as well.

Ram Krishnan says:

Delighted to see the interest in the technology behind Yes, we are indeed using Common Lisp to build the entire application. As an when time permits, I will try to write more about our system design as well as how we've leveraged Lisp in our application.

In the meantime, you might want to take a look at Will Gozer's blog on the development of, another web application written entirely in Common Lisp ( We were certainly impressed and inspired by his work.

Disclaimer: I'm one of the principals at Podbazaar.

Swaroop says:

@Ram Krishnan: Why did you choose Lisp? It's a very interesting decision that you chose it instead of Ruby on Rails, etc... I'm looking forward to your (any) forthcoming writings :-).

Also, do tell us about your system design as well.

Ram Krishnan says:

I guess the short answer is, Lisp is what we were most proficient with.

I did play with "Ruby on Rails" a while back, and found it interesting, but not compelling enough. Besides, when it comes to building extensible abstractions, nothing beats Lisp; the power of Lisp macros becomes abundantly evident when building web apps and web services (check out Will Glozer's blog entry on Syntactic Abstraction at

Also, the fact that SBCL has a native optimizing compiler and support for native threads were important considerations in our decision as well.

Tom Elam says:

I believe the information that Yahoo! Stores doesn't use Lisp is false. They still do, according to relatively recent information. They replaced as much as they could with C++ because they were 'afraid of Lisp'. Here's a nice write-up about what happened after Yahoo! bought ViaWeb: