PCLoupe is a small display utility that shows a magnified image of the area around your mousepointer in its window. You can move or resize this window, change its refresh rate, and make it topmost if you like.
Presentation Marker allows users to mark on screen directly and zoom into certain portions for quick explanation. Moreover, it offers more additional tools ? Spotlight, Curtain, Screen Digital Clock, Arrow Point, Magnification, Screen Capture etc.
Screen Ruler 2D is an on-screen pixel ruler which measures in 2 dimensions (horizontal and vertical). It includes a color picker and a window information panel, a magnifier and positioning aids to position the ruler pixel accurately simply and fast.
Webmaster's Toolkit - utility that allows you quickly measure the size of objects on the screen with pixel ruler, picking the color value from any pixel of the screen and alter or produce your own colors with the Photoshop-style Color Picker.
Web Page Thumbnails 2.8.0: Free software to easily capture thumbnails of web pages