DOM Monster Bookmarklet

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DOM Monster is a cross-platform, cross-browser bookmarklet that will analyze the DOM & other features of the page you're on, and give you its bill of health.

Prototyping Mobile First

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Mockup phone and tablet prototypes for iOS 7, Android Jelly Bean and Windows 8 faster with this set. Includes keynote, omnigraffle and pdf files.

EightShapes Unify

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A documentation system to produce wireframes, maps, flows, storyboards, plans, style guides, specs, usability testing reports, and prototypes.

PhoneGap

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PhoneGap is a free and open source framework that allows you to create mobile apps using standardized web APIs for the platforms you care about.

ChooseALicense.com

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Because choosing an OSS license doesn’t need to be scary. MIT, Apache and GPL licenses explained.

Prose

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Prose provides a beatifully simple content authoring environment for CMS-free websites. It's a web-based interface for managing content on GitHub.