Debugging NSAttributedString Using a Block to Print Attributes [iOS developer:tips];.
ObjectiveC
LibTooling
A lib to create source analyzers: LibTooling — Clang 3.4 documentation from “Using Clang as a Library” in http://clang.llvm.org/docs/index.html.
Matt D. Smith
Cool design: light but clear – Dribbble – Matt D. Smith.
Also a good solution for merging label and placeholder in an elegant way (FloatLabeledTextField).