Alan Fletcher did a write-up on "Cross-platform development the FireMonkey way"
Zarko Gajic wrote several articles, including:
"Have a Delphi Function Return Multiple Results / Values"
"Intercepting Keyboard Input with Delphi - Implementing a Keyboard Hook"
Juan Antonio Castillo wrote an article on "7-zip and Delphi" - Spanish - English (Google)
Vladislav Bajenov wrote an article "Working with IMAP in Synapse" - Russian - English (Google)
Brian Long compiled a list of resources and links from the Developer Direct webinars
He also summarized a lot of "Embarcadero's C++ stories"