Juriy Zaytsev just released a brand-new Prototype 1.6.0.2 cheat sheet that is a great time-saver for development and also makes a nice wall poster. As a nice bonus, it lists deprecated methods, too—time to get rid of those in your code.
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The JavaScript UI framework used on sites like Apple, CNN.com and NASA. Open source goodness so you can use it too!
Next-generation HTML-based visual effects for a more delicious web. Available as an alpha release now!
Beautiful sub-pixel antialiased font rendering for the Web.
slash7 is Amy Hoy and Thomas Fuchs. We produce the interface uncommon: useful, stunning, revealing, unexpected & mesmerizing interactive software. Hire us.
Freckle: time tracking web application for consultants and
small teams. We decided to end the suck and give you painless time tracking.
I highly recommend Prototype & script.aculo.us
