P Elements in Drosophila
The natural biology of P-elements, and how it has been harnessed into a powerful genetic tool.
http://engels.genetics.wisc.edu/Pelements/Pt.html

WebGrab
FTP crawler, web download, browser
http://www.eastbaytech.com/webgrab.htm

Balthaser:FX
profx is the world's leading flash builder site.
http://www.balthaser.com/

Zpaint
Free tool for creating 3D-looking elements for websites and software interfaces. Easily paint raised or lowered shapes such as buttons, rings, and boxes.
http://www.steffengerlach.de/freeware/#zp/

XPath Finder
Developer tool; display XPath expressions for elements in a document.
sherlock://si.info.apple.com/sherlock3s/channels/pathFinder.xml

Rectangular Marquee Tool
Javascript object for making a rectangular selections on your picture for some actions. DHTML image cropper (Hosting?)
http://marqueetool.net/

GrayBit Grayscale Contrast Tool
GrayBit Presents: GrayBit v2.0 Grayscale Conversion Contrast Accessibility Tool
http://graybit.com

Analyze - Text analyzer
A text analyzer is a specialized tool for examining one or more texts.
http://www.cvkimball.com/Analyze/Analyze.html

Elements
Periodic table of the elements, packed with data and able to interactively produce useful graphical output. It also speaks!
http://rogerdarlington.members.beeb.net/ShopE.htm

Rediscovery of the Elements
Rediscovery of the elements is a visual tour of the original sites of the discovery of the chemical elements.
http://www.jennymarshall.com/rediscovery1.htm