The modern role of testers is not only to test software but also to help others test software. Maria Kedemo describes this in more detail, focusing on coaching and being a subject matter expert.
I liked this series of lessons that Pavel Kiselev learned the hard way, based on these interesting stories.
The community on Reddit has given some nice pieces of advice to someone feeling a bit lost after joining a company as a software tester. This is heart-warming!
You might be already familiar with the test pyramid but Mahesh Arali broke it down into many components and described in detail what activities and what parts of tests can be implemented at each stage. This is a handy infographic.
What browsers should you prioritise testing on? Is IE11 still relevant? When shouldn't you do cross-browser testing? In this fine article, Wes Silverstein answered all these questions, and much more.