B2evolution

b2evolution is probably the most comprehensive blog engine you can find.

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Developer: François PLANQUE
License: Freeware
Operating System: linux, windows, freebsd, osx, sun

Superclock is a multi-platform compatible very customizable day/date/time script with an attractive beveled border that uses your own custom background image.

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Developer: SpriteWorks
License: Freeware
Operating System: Unix/Linux/Windows

Superwin is a multi-platform compatible highly-customizable pop-up window script.

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Developer: SpriteWorks.com
License: Freeware
Operating System: Unix/Linux/Windows

NoPeek is a "no-right-click" script (without the prompt/alert) for webmasters wanting a polished, professional look.

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Developer: Spriteworks Developments
License: Freeware
Operating System: Linux, Unix, Windows