Fxguide.

https://www.fxguide.com/

Ilkke.

http://ilkke.blogspot.com.tr/
http://ilkke.net/

DScaler.

The DScaler project is an ongoing attempt to get the best video quality possible from a Windows PC.

http://www.dscaler.net/

CSDB: C64 Scene DB.

A site dedicated to gathering as much information as possible about the productions, the groups, the sceners, the events and bbs's in the Commodore 64 scene.

http://csdb.dk/

WinWorld.

WinWorld is an online museum dedicated to the preservation and sharing of vintage, abandoned, and pre-release software.

https://winworldpc.com/

Fangamer.

https://www.fangamer.com/

Mark Coleran.

CGI artist Mark Coleran's website. 

http://coleran.com/ - DEAD

Cinearchive.

http://cinearchive.org/  - DEAD.
https://cinephiliabeyond.org/

Falstad. Some scientific Java applets.

http://www.falstad.com/

Display Mate. Display calibration and optimization software.

http://www.displaymate.com