This widget displays a stack of images that you can flick through like a rolodex or a card deck. It uses gwt's deferred binding for the image generation and lightweight animation to create a fast and smooth experience in all supported browsers. Check out
XPath Checker is a Firefox Extension I wrote for testing XPath expressions interactively. You might find it useful if you use xpaths or want to learn how.
TWO YUMMY LIBRARIES! Ruby Facets is the single largest collection of core extension methods and standard library additions available for the Ruby programming language.