The site is not right new, but still interesting and all Sourcecodes can be downloaded as ZIP-File.
QuoteThis is a collection of the IFX Group files that include PowerBASIC source code. It is important to note that unless otherwise stated, all of these files are copyrighted and all rights remain with the copyright holder. The PowerBASIC source code is included for your personal non-commercial use unless otherwise noted in the included documentation. Contact us for information about non-personal use.
IFXGroup.net PB Source Code and Tools (http://ifxgroup.net/pb-code.htm)