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FAQ: IntelliJ IDEA
IntelliJ IDEA Productivity Tips. Part 1
Top 20 Features of Code Completion in IntelliJ IDEA
Top 20 Refactoring Features in IntelliJ IDEA
Part I, Part II: Live Templates, Part III: External Tools
Maven Support in IntelliJ IDEA (скринкаст)
12 IntelliJ IDEA Keyboard Shortcuts You Should Know About
IntelliJ IDEA: Generate equals, hashCode and toString with Google Guava
User Interface, Editor Basics, Code Completion, Navigation, Quick Popups, Folding, Find Usages
Misc IntelliJ tips