While surfing websites, there is nothing more frustrating than being unable to contact the website/blog owner to leave your feedback, share an idea, post question, or just say thanks.

Fortunately, adding a WordPress contact/feedback form is quick and easy. All you have to do is install Usernoise which is a simple WordPress plugin to add contact/feedback form on your website without having to write a single line of code.

Major Features

• Adds a customizable “Feedback” button and form to your site
• Flexible typography – it matches your site’s style by default
• You can disable extra fields such as feedback type and title
• Admin notifications, feedback archive available

Usernoise is a multi-lingual feedback form and currently available in Dutch, French, Portuguese, Russian, Spanish and Turkish.

Mobilize.js is an HTML5 framework to do website mobilization on the client side. It detects mobile browser and convert the website for touch optimized displays using jQuery Mobile UI framework.

• Automatically detect mobile browsers
• One script tag integration
• Touch optimized user interface based on jQuery Mobile
• Cloud hosting: optimized JS and CSS from the cloud
• Supports iPhone, Android and many other browsers & devices

The client orientation and lack of complex server-side dependencies makes Mobilize.js simple and easy to integrate to any web system.

Elycharts is a completely customizable and easy-to-use pure JavaScript Charting Library.

With Elycharts you can customize every aspect of the charts the way you want. All the colors, text parameters, sizes, grid types can be easily changed.

Furthermore, Elycharts natively support features like legend generation, data tooltips etc and offers multiple chart types including

• Line charts with spline support
• Area and areaspline charts
• Column/bar charts
• Combined line/area charts
• Sparklines and sparkbars
• Pie charts

SVG Rendering is used on all browsers that supports it, VML rendering is enabled for the others (IE).

Spin.js is an open source JavaScript Progress Indicator with VML fallback for IE. The progress indicator is highly configurable and you can control the number of lines, length, width, radius etc using an easy to use interface completely built with CSS3.

Features

• No images, no external CSS
• No dependencies
• Highly configurable
• Resolution independent
• Works in all major browsers, including IE6
• Smaller than an animated GIF (2.85Kb minified, 1.6Kb gzipped)

Bootstrap is a CSS toolkit from Twitter designed to kickstart development of web apps and websites. It includes base CSS and HTML for typography, forms, buttons, tables, grids, navigation, and more.

Bootstrap is built with Less and was designed to work out of the gate with only modern browsers in mind.

You can use Twitter Bootstrap in one of two ways: just drop the compiled CSS into any new project and start cranking, or run LESS on your site and compile on the fly like a boss.

jQuery Timelinr is a jQuery plugin helps you to give more life to the boring timelines by creating animated sliding timelines.

It offers great flexibility by supporting horizontal and vertical timelines and you can parameterize the majority of attributes including speed, transparency.

HybridAuth is an open source web-based authentication and authorisation solution that combines the strengths of several major social networks and Identity Providers services into one simple PHP Library.

This PHP Library for social services authentication supports many social platforms including Facebook, Twitter, Google, Yahoo, MySpace, LinkedIn, FourSquare, OpenID and many other Identity providers.

Major Features

• Authenticate users with a wide variety of well known social websites
• Provide the connected user profile’s in a rich, simple and standardized structure across all the social APIs
• The complexity of implementing identity providers authentication and authorization protocols are simplified for the developers
• All transactions are completely transparent to the end user

ElasticSearch is an open source, distributed RESTful search engine built for the cloud on top of Lucene. ElasticSearch is schema less, just toss it a typed JSON document and it will automatically index it.

Search can be executed either using a simple, Lucene based query string or using an extensive JSON based search query DSL. Search though does not end with just queries, facets, highlighting, custom scripts, and more are all there to be used when needed.

Signature Pad is a jQuery plugin for assisting in the creation of an HTML5 canvas based signature pad. Records the drawn signature in JSON for later regeneration.

The Signature Pad jQuery plugin will transform an HTML form into a signature pad.

The Signature Pad has two modes:

TypeIt: The user’s signature is automatically generated as HTML text, styled with @font-face, from the input field where they type their name.

DrawIt: The user is able to draw their signature on the canvas element.

Opa is an open source cloud language claims to be the next generation of web development platform. It is a new programming language, a new web server, a new database and a new distributed execution engine, all of them tightly integrated to provide a great experience for web developers.

Opa is built from the bottom-up for Cloud applications, and shines most with applications that require scalability, security, interactivity, real-time web and complex data manipulation.

Opa is concise, simple and readable, it is also extremely powerful, concurrent, dynamically distributed, and extremely secure, much more so than just about any other programming language. Opa is designed to make web development fun, secure and right.