I was running through some sites I like recently to see which programming languages they use. Most of the new sites I respect seem to be using RoR or Django, but it’s crazy how strong php is on some of the biggest sites out there. For those who hate its mess, I’m sorry to say that php is not going away anytime soon.

If you’ve got others feel free to add them in the comments.

(random order)

mint.com – java
twitter – RoR
facebook – php, C++
last.fm – php, java, C++ (client)
ilike – RoR
google – python for web interactions
yelp – python
posterous – RoR, Java
playdom – php, java
zynga – php
slide – python
dropbox – python
digg – php
amazon – java/c++
youtube – python (started in php)
flickr – php
imdb – perl
hi5 – java?
friendster – php
ning – php
hulu – RoR
netflix – java, C++
wikipedia – php
wordpress – php

If you’re interested in general popularity visit the TIOBE site