Basic sites, usually static with minimal bespoke functionality. I often attract this sort of work due to my reputation as the 'website guy', as a result of freelancing for so many clients over the years.
Large applications containing a significant amount of bespoke functionality, often catering to a large user base. Usually constructed using an MVC framework such as CodeIgniter and requiring a team of developers to maintain and develop.
Occasionally I am required to use AWS to build a scalable & robust infrastructure for web applications. Linux hosting servers (EC2), MySQL servers (RDS), Automated deployments (OpsWorks), Domain management (Route 53), Email services (SES).