Focus Genie
Make any window stay on Top, automatically sets the focus of an application as your mouse passes over it. To disable Focus Genie, just hit Ctrl-Shift-F and hit Ctrl-Shift-F again to enable it. If you would like an application to Stay on Top then just hit Ctrl-Shift-T to stop it from Staying on...
http://www.vsisystems.com/download/focusgen.exe - 15Kb - Download - Screenshot

Auto Window Manager
Auto Window Manager automatically manages any window you specify. For instance, some web browsers open up in a non-maximized window. Using Auto Window Manager,you can set those windows to automatically maximize (minimize, normal, minimize to tray,stay on top) every time they're opened. ... The commands are:Minimize to system tray, always keep window on top, Set window transparency, align window, resize window. ... Auto Window Manager adds several menu items to standard window menu accessible via application icon in the title bar.
http://www.eusing.com/Download/AWMSetup.exe - 650Kb - Download - Screenshot

Transparent Window Manager
This software helps you to manage your windows settings. You may set transparency of any window required. You may place any window to the top of others. Moreover you may disable input for any window. This gives you opportunity to productive work with graphical and other programs using small and... The windows list allows to you set flags to the windows (stay on top, stay on bottom, disable input, system tray, auto shrink) - Selected window highlighting! ... The window with the 'disable input' flag and the 'stay on top' flag will be visible but cannot be moved, chang.
http://www.oreware.com/download/TransparentWindowManagerSetup.exe - 2Mb - Download - Screenshot

EuroCalc
Easy free small Calculator and Euro converter. Stay on top, remove conversion and remove keyboard options.
http://homeusers.brutele.be/alexSofts/EuroCalc.zip - 188Kb - Download - Screenshot

KidsMath
This is a small calculator that will stay on top all the time while your working. Converts Decimal to Hex, Binary, and returns Ascii characters. All keys have tool tip text to easily find keyboard shortcuts.
http://home.comcast.net/~jlebr549/KidsMath.msi - 527Kb - Download - Screenshot

Timer Pro
A nice, easy and cheap Timer for everyone ! Adjustable options: segment color, min. and max. (alarm), count up, count down, sound on-off, stay on top, etc...
http://www.download4you.com/download/TimerPro.zip - 688Kb - Download - Screenshot

Windows Manager
Program to read/set position & text; change transparency,hiding&active state, view all coordinates, class name selected & parent window via Handle. New version: Allows to change "stay on top" status by handle.
http://fcsoft.by.ru/products/wm/WManager.zip - 607Kb - Download - Screenshot

US Box Office
Stay up to date with hottest movies showing in cinemas across US. This screen saver will show you the latest US weekend box office numbers for the top ten movies with movie posters and cast overview. Data are updated automatically on a weekly basis.
http://www.krstdesign.com/issb/iss/boxoffice/boxoffice.zip - 254Kb - Download - Screenshot

Hide Window Hotkey
Hide Window Hotkey is a utility which allows you to hide the windows, and programs which are running on your screen. It will instantly hide or close all (or some) programs on your screen through Mouse Hotkey or Keyboard Hotkey in order to prevent uninvited persons from seeing them. ... Using Hide Window Key,you can set those windows to automatically maximize (minimize, normal, minimize to tray,stay on top) every time they're opened. ... It can also protect the hidden windows with a password. ... Hide Window Hotkey stays running in the system tray, so it stays out of your way while it works.
http://www.elongsoft.com/download/HWHSetup.exe - 883Kb - Download - Screenshot

Cactusus
Cactusus is a program developed as a replacement for "sticky notes" on your desktop. Just a text taking quite a little space and always staying on top. For each note your can define: - priority. Most important notes are placed at the top of list - "see also" remark. ... Comments are displayed in a tooltip of the note. ... "See also" remark may contain anything that Windows can understand and launch: doc file, web link etc.
http://informer.russia.webmatrixhosting.net/cactusus.zip - 26Kb - Download - Screenshot