Time ago I heard about some ESPN & CSS thing going on. I remember something about ESPN saving terabytes a day in bandwitdh usage by using CSS for layout instead of tables.

So know I did some research and long story short:

  • ESPN website gets about 1 to 1.3 billion page views per month.
  • By using CSS…
  • Page reduction (estimate) 50 KB
  • Page views/day 40,000,000
  • Projected bandwidth savings:

So… switching from Tables to CSS styling is not such a little thing, and it takes tons of work when you change some existing website and try to migrate it to CSS layout. But the concept of just presentation and content-structure separation can make such an impact can tell you that you don’t need some costly data mining algorithms for getting some nice returns on investment.

Sources:
http://www.mikeindustries.com/blog/archive/2003/06/espn-interview