I am an engineer from APTECH.. I am working in the IT business since 2002 and doing Internet programming since 2004.
The last 4 years I have developed about 50 Django sites. The most of them are small-medium business websites, however I have programmed quite a few full scale web applications as well.
The most important is an order delivery food network, where user is choosing among many restaurants and send the order online, received by the shop by email/sms/fax.
Other large applications are Art management software, Tourist guide, News...