Aditya Agarwal, Director of engineering at facebook, gave a very interesting presentation in May 28th at QCon illustrating Facebook architecture.

Aditya stressed on making it quickly to the market and not to over engineer. “Scalability is a good problem to have” as stated by Aditya.

Statistics:

1. users spend 8 billion a minute per day on Facebook
2. 5 billion piece of content shared every week
2. More than 400 million active users (logged in the the last 30 days)
3. Biggest photo site on the web! larger than the aggregated sum of all other sites Continue Reading