Top web Sites implementations

Here are the web technologies used to build the most famous and largest web sites in the world, you can click on the links if you want to see references or more details.


Facbook.com
written in PHP, C++ and Java

data is output in PHP format (compiled with HipHop for PHP). The backend is written in Java and Thrift is used as the messaging format so PHP programs can query Java services.here

HipHop converts PHP into heavily optimized C++ code, which can then be compiled into an efficient native binary. the company's engineers reported that it reduced average CPU consumption on Facebook by roughly 50 percent. here

eBay.com
from Perl .. to .. XSL(front end) & C++ (back end) .. to .. XSL (front end) & Java (back end)

Youtube.com
written in Python

Twitter.com
from Ruby on Rails .. to .. Scala .. to .. Java

James Gosling explaining why twitter moved from ruby to java


Amazon.com
written in C++ and Java with Oracle database engines on Linux-based Hewlett Packard servers

LinkedIn.com
written in Java

PayPal.com
written in C++

If a programming language was a boat

I saw this article in a programming forum and I found it nice and accurate in describing programming languages and shows us the difference between them in a simple way, so I copied it here for you.

Java
Java is a cargo ship. It’s very bulky. It’s very enterprisey. Though it can also carry a lot of weight. Will carry a project, but not very fun to drive.



Perl

Perl is a tugboat. Powerful enough to tug Java around, in 80 characters or less.



Ruby
Ruby is difficult to describe. It’s sleek, sexy, and very fun to drive. Here’s a picture. Very trendy.



PHP
PHP is a bamboo raft. A series of hacks held together by string. Still keeps afloat though.



C
C is a nuclear submarine. The instructions are probably in a foreign language, but all of the hardware itself is optimized for performance.



C-sharp
Like a luxury cruiser. Sleek, good looking and quite comfy. However, not very fast , expensive and somewhat limiting.



Visual Basic
As time went on you realized it was completely bloody useless.



HTML
HTML isn’t really a programming language boat.



Python
Undeniably beautiful and elegant in the water, tends to be solid and reliable. Will work with little intervention, but also provides sails to help you go that little bit faster.



Javascript
Like James Bond Q Boat. It’s small but powerful and it’s really easy to get yourself killed trying to use it.



FORTRAN77
A concrete boat that still lurkes under the surface. You wouldn’t want to set sail with it though. Try navigating around it.