Toptal published and illustrated a lengthy article I wrote on what I call Adminimisation, that is, automating away the boring and routine tasks involved in running a web service. Useful if you program admin dashboards which you or your staff regularly grapple with.).
Adminimisation: Tips for Building Great Admin Dashboards
How to build a robust administrative area that'll help you automate away the boring and routine tasks involved in running a web site
Learn about representing money, rounding algorithms, and anticipating oddball transactions.
The most common source of bugs in web applications?
Why your code should be capable of remembering and replaying inputs in the event that something goes wrong