PDFsharp is the Open Source .NET library that easily creates and processes PDF documents on the fly from any .NET language. The same drawing routines can be used to create PDF documents, draw on the screen, or send output to any printer. Neither Adobe's PDF Library nor Acrobat are required. Its features include:
 <ul><li>Creates PDF documents on the fly from any .NET language<1/li><li>Easy to understand object model to compose documents</li><li>One source code for drawing on a PDF page as well as in a window or on the printer</li><li>Modify, merge, and split existing PDF files</li><li>Images with transparency (color mask, monochrome mask, alpha mask)</li><li>Newly designed from scratch and written entirely in C#</li><li>The graphical classes go well with .NET </li></ul>

PDFsharp is the Open Source .NET library that easily creates and processes PDF documents on the fly from any .NET language. The same drawing routines can be used to create PDF documents, draw on the screen, or send output to any printer. Neither Adobe's PDF Library nor Acrobat are required.

PDFSharp - Create and process PDF in .NET

Pharo is an open source Smalltalk. The goal of Pharo is to produce a clean and lean open-source Smalltalk. Pharo wants to bring Squeak to the next level. It is a pure object-oriented language with low memory footprint. Pharo's goal is to deliver a clean, innovative, free open-source
Smalltalk environment. By providing a stable and small core system,
excellent developer tools, and maintained releases, Pharo is an
attractive platform to build and deploy mission critical Smalltalk
applications. Pharo is an implementation of the Smalltalk programming language and
environment. It's a fork of Squeak and, as this one, it's highly
portable and its virtual machine is written entirely in Smalltalk
making it easy to debug, analyze, and change. Google project location: <A HREF="http://code.google.com/p/pharo/" target="_blank">http://code.google.com/p/pharo/</A>

Pharo is an open source Smalltalk. The goal of Pharo is to produce a clean and lean open-source Smalltalk. Pharo wants to bring Squeak to the next level. It is a pure object-oriented language with low memory footprint.

Pharo - Smalltalk inspired language

jqFancyTransitions is easy-to-use jQuery plugin for displaying your photos as slideshow with fancy transition effects like wave, zipper, curtain, fountain top, random top, curtain alternative, left top, right bottom. 

 
 Demo Page: <A HREF="http://workshop.rs/projects/jqfancytransitions/" target="_blank">http://workshop.rs/projects/jqfancytransitions/</A> 
 Code location: <A HREF="http://code.google.com/p/jqfancytransitions/" target="_blank">http://code.google.com/p/jqfancytransitions/</A>

jqFancyTransitions is easy-to-use jQuery plugin for displaying your photos as slideshow with fancy transition effects like wave, zipper, curtain, fountain top, random top, curtain alternative, left top, right bottom.

jqFancyTransitions - Fancy transitions effects

The Qcodo Development Framework is an open-source PHP web application framework which builds an Object Relational Model (ORM), CRUD (Create, Retrieve, Update, Delete) UI pages, and AJAX hooks from an existing data model. It additionally includes a tightly-integrated HTML and JavaScript form toolkit which interfaces directly with the generated entities. It is a robust, comprehensive framework which can be utilized by small and large Web applications alike. The framework consists of three main components: the Code Generator, QForms (OOP generated stateful Ajax- or server-processed webform), QQuery (OOP based SQL Query builder) -- all of which can be used independently of each other. The Code Generator parses an existing Relational Database structure, and builds an ORM, as well as several remote interfaces (SOAP, AJAX) to the ORM. The ORM in Qcodo can be extended to provide user-maintained functionality (via object subclassing). QForms is a ASP.NET-inspired templating engine in which each form element is an object exposing its functionality and state via methods and attributes. Delo.si, the official website of <A HREF="http://www.delo.si/" target="_blank">Delo</A>, the major daily newspaper of Slovenia.

The Qcodo Development Framework is an open-source PHP web application framework which builds an Object Relational Model (ORM), CRUD (Create, Retrieve, Update, Delete) UI pages, and AJAX hooks from an existing data model. It additionally includes a tightly-integrated HTML and JavaScript form toolkit which interfaces directly with the generated entities. It is a robust, comprehensive framework which can be utilized by small and large Web applications alike.

Qcodo - Code Less Do More

Umbraco provides a full-featured web content management system that is easy to use, simple to customize, and robust enough to run the largest sites such as <A HREF="http://wired.co.uk" target="_blank">wired.co.uk</A> and <A HREF="http://asp.net" target="_blank">asp.net</A>. It is most popular and widely used CMS. It has more than 85000 active installations. 

 It has loads of features required for a CMS. It does provides support for Polls, Forum, Podcast blog, Event management, Access control and permissions for pages, WYSIWYG editor, Displays twitter feed and post, Searchengine friendly, Gallery, Paypal support, Personalization of content for logged-in User and lot more. 
 
 This open source product can be bundled with guaranteed and professional support, bug fixing warranty and productivity enhancing add-ons. 

 Source code location: <A HREF="http://umbraco.codeplex.com/" target="_blank">http://umbraco.codeplex.com/</A>

Umbraco provides a full-featured web content management system that is easy to use, simple to customize, and robust enough to run the largest sites. It is most popular and widely used CMS. It has more than 85000 active installations.

Umbraco - simple and friendly ASP.NET CMS

Pyro is short for PYthon Remote Objects. It is an advanced and powerful Distributed Object Technology system. when using Pyro you just write your Python objects like you would normally. With only a few lines of extra code, Pyro takes care of the network communication between your objects once you split them over different machines on the network. All the gory socket programming details are taken care of, you just call a method on a remote object as if it were a local object.

Pyro - PYthon Remote Objects

CodeMirror is a JavaScript library that can be used to create a relatively pleasant editor interface for code-like content. It could be easily integrated in to your webpage. It supports JavaScript, XML/HTML, CSS, Python, PHP, diff, C, Java, sTeX, LaTeX, Haskell, Smalltalk, reStructuredText and PL/SQL. It also supports features like Autocompletion, Search/replace, Highlighting the current line.
 <img src="/AppImages/Article/code-mirror-img1.jpg" alt="" class="float-center">

CodeMirror is a JavaScript library that can be used to create a relatively pleasant editor interface for code-like content. It could be easily integrated in to your webpage. It supports JavaScript, XML/HTML, CSS, Python, PHP, diff, C, Java, sTeX, LaTeX, Haskell, Smalltalk, reStructuredText and PL/SQL. It also supports features like Autocompletion, Search/replace, Highlighting the current line.

CodeMirror - In-browser code editing

Hector is a high level Java client for Apache Cassandra. Apache Cassandra is a highly available column oriented database. Hector provides Object oriented interface, Failover, Connection pooling, JMX, Basic Load Balancing and lot more.

Hector - Java client for Apache Cassandra

Pinax is an open-source platform built on the Django Web Framework. It provides reusable Django apps to take care of the things that many sites have in common. Its feature include Openid support, Password management, Basic twitter clone, Gravatar, Issue management, Threaded discussions, Blog, Bookmarks, Wiki, Tag support, Photo management and lot more.

Pinax - Platform built on the Django Web Framework

dygraphs is an open source JavaScript library that produces produces interactive, zoomable charts of time series. It is designed to display dense data sets and enable users to explore and interpret them. Its features include Displays Annotations on the chart, Compatible with the Google Visualization API, Interactive zoom and lot more.

dygraphs - JavaScript Visualization Library

Imperium is a web-based billing and accounting software solution for small and medium sized businesses. It provides basic CRM, Job Tracking, Invoicing, Double-Entry Book-keeping and Accounting features. Easily organize clients and contacts, provide quotes, track work and send bills.

Imperium - Billing and Accounting Software

Review Board is a powerful web-based code review tool that offers developers an easy way to handle code reviews. It scales well from small projects to large companies and offers a variety of tools to take much of the stress and time out of the code review process. Review Board supports reviewing code for Bazaar, CVS, Git, Mercurial, Perforce, and Subversion repositories.

Review Board - Code Review Tool

Bottle is a fast, simple and lightweight WSGI micro web-framework for Python. It is distributed as a single file module and has no dependencies other than the Python Standard Library. It supports routing requests to function-call mapping with support for clean and dynamic URLs. Built-in template engine, Convenient access to form data, file uploads, cookies, headers and other HTTP-related metadata, Built-in HTTP development server and lot more.

Bottle - Python Web Framework

Hubot is a chat bot, modeled after GitHub's Campfire bot. It is extendable with community scripts and your own custom scripts, and can work on many different chat services.

Hubot - A Chat Bot for your Company

GNU Radio is a free & open-source software development toolkit that provides signal processing blocks to implement software radios. It can be used with readily-available low-cost external RF hardware to create software-defined radios, or without hardware in a simulation-like environment. It is widely used in hobbyist, academic and commercial environments to support both wireless communications research and real-world radio systems.

Gnuradio - Radio Ecosystem

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