Diogo Nunes put together a few solid heuristics that can help you memorise testing ideas. There are some great references, too.
Similarly, Markus Gärtner shared an interesting way of describing common concepts using a short compilation of Agile "What If"s.
Someone asked on Reddit what to do when developers don't have the testing mindset. You can also find the same question with more answers here.
Maybe one of the potential solutions is getting familiar with the Testing Strategies for Front-End Developers, as Ray suggests.
This is a really solid piece of work from the QA Madness team which put a lot of effort to research, analyse and compile this insightful list of future trends in software development and their impact on testing.
Flavien Huynh describes the process of software quality monitoring using the quality dashboard and quality indicators, including lessons learned after one year of using it on a real project.