A curated list of amazingly awesome awesomeness

By now, we’ve all encountered captcha images in online forms. Captchas are a necessary evil, and this article will teach you how they’re made.
Please note that while there are better, automatic third party solutions for captchas out there such as ReCaptcha, this tutorial aims merely to explain and demonstrate how such technology actually works. We won’t be explaining what captchas actually are, as it’s assumed to be common knowledge and already covered in greater detail elsewhere.

I love Twitter’s Bootstrap. I find that when developing with it, either Bootstrap 2 (2.3.2) or Bootstrap 3, that I always need to apply custom styles at the different sizes. Especially when going beyond Bootstrap’s standard functionality. After all, it’s just a front-end framework.
Below you’ll find nicely formatted Media Queries for starting with either of the Bootstrap versions. You can use this as a starting point for your projects. It’s basically what I use when creating a new website or webapp. I’ve also provided links to Github for quick access.

Something like an upgraded `EXPLAIN` command for browser. Highlights and explains MySQL queries. It gives also hints and links. Hope it will help

The term CSS delivery simply means "the way CSS stuff happens on a webpage". CSS can be used many ways by a web page and still work. Since there are many ways to use it, there exist many different CSS setups. Your CSS should help your webpage render fast, not slow down your webpage.
The way CSS is used on a webpage has overwhelmingly been determined by designers, not website owners. So the web designer is making lovely, well commented CSS code and has been placing it in several different files for clarity. They think, with merit, "I have done an amazing wonderful job". This is what they have been taught.
Unfortunately this practise and others ends up killing the performance of web pages.
As this realization gets out there, you will notice that web designers will start making code that helps their users by working as fast as possible, however, for the moment... You probably have CSS that is hurting your website rather than helping it.

Internet is omnipotent these days but what is more important than website is the web application. Most of the business users as well as a large number of common users are usually on portable or mobile devices and they don’t always have an access to a network. With HTML5’s Application Cache, you can provide them with all or some of the functionality they would have online, no matter where they go. To undertake the process of building a cache with HTML5 for offline access, first of all, requires using a cache manifest file. This is quite simple!

Polymer is a new type of library for the web, built on top of Web Components, and designed to leverage the evolving web platform on modern browsers.
- Architectural diagram
- A set of polyfills for emerging web platform features. Initially, these core features are enabled as polyfills but go away over time as browsers implement them.
- A next-generation web application framework built upon these core technologies.
- A set of comprehensive UI and utility components for building web applications.

Dart is a new language for scalable web app engineering.

Welcome to the open-source Codepath Android Cliffnotes! Our goal is to become the central crowdsourced resource for complete and up-to-date Android content and tutorials. Just take me to the notes!
We have guides for everyone whether you are beginner, intermediate or advanced. Want to learn how to use the ActionBar or the ins and outs of fragments? We got that. Want to learn about testing or how to build flexible user interfaces for multiple devices? We got you covered. We don't waste time with the "theoretical approach" you might get from a book. We cover exactly the things we use every day as we are developing apps for contracts.

Ever needed custom formatted sample / test data, like, bad? Well, that's the idea of this script. It's a free, open source tool written in JavaScript, PHP and MySQL that lets you quickly generate large volumes of custom data in a variety of formats for use in testing software, populating databases, and... so on and so forth.
This site offers an online demo where you're welcome to tinker around to get a sense of what the script does, what features it offers and how it works. Then, once you've whet your appetite, there's a free, fully functional, GNU-licensed version available for download. Alternatively, if you want to avoid the hassle of setting it up on your own server, you can donate $20 or more to get an account on this site, letting you generate up to 5,000 records at a time (instead of the maximum 100), and let you save your data sets. Click on the Donate tab for more information.