Firms...
Inprise
Microsoft

Magazines...
Harian Kompas

My university!
Universitaet-Muenster

Delphi's things...
Delphi VCL Extensions (RX) Library
The Delphi EXchange
Windows95.com Delphi Tools
Ask the Delphi Pro
The Delphi 3 Information Page
Tony Chow Chow's WinStep
Torry's Delphi Pages