Dr. Link Check - Broken link checker with malware and parked domain detection
Wallpaper Engine - Wallpaper Engine enables you to use live wallpapers on your Windows desktop.
BrokenLinkCheck - Free Broken Link Checker / Online Dead Link Checking Tool - find bad hyperlinks
Lively Wallpaper - What is it? Lively is a Free and Open-Source Software (FOSS) for animated desktop wallpapers.
LinkChecker - LinkChecker is a free, GPL licensed website validator.
ScreenPlay - Open-source and cross-platform Wallpaper, Widgets and AppDrawer app.