Pitfalls when coming from Java and C# to Objective-C
We need a Delete Old Documentation Day
A completely safe way of registering for a web application
Maven Eclipse Plugin org.sonatype.aether.transfer.NoRepositoryConnectorException: No connector available to access repository java.net gave me a big headache, now I got it.
Build a solide foundation of understanding for the basic concepts, before you try to understand higher level concepts.