phpSysInfo is a free PHP script that displays detailed information about the host it is placed.

It can show data like the CPU, Ram, OS, "since when it is up", installed devices, etc.

Also, phpSysInfo can collect the information required to analyze the server load which can effect website performances like the available Ram or network usage.

The script works on every PHP-enabled website & can display static information, generate XML outputs (which is nice for automated checks) or dynamically update itself.

It is multilingual & includes various ready-to-use themes for customization.

Spritely is a jQuery plugin for creating dynamic character & background animations using HTML + JavaScript.

With the power of JavaScript, the animations can be controlled on events (clicks, mouseovers) easily.

Animated elements can fly over the page without effecting any other element (can be ideal for floating-type banners) & the page still remains accessible.

Specially, for the platforms where Flash is not supported, Spritely can be an alternative (like iPhone, iPad).

It works in all major browsers including IE6.

SlimStat is an open source web analytics application that collects & presents statistics information about your website.

It is built with PHP-MySQL & can be integrated into websites with JavaScript (like Google Analytics) or PHP.

For  the given period, the application can display:

• the number of visitors/pageviews
• referrer URLs, domains
• search terms
• browsers, OSs, countries, screen sizes

There is also a "paths" feature that shows a user's browsing path page-by-page.

You may be asking, "why to use SlimStat instead of Google Analytics?" The best answer would be "live stats".

Phpns is an open source news/content management system that will enable you to add dynamic content to any website with one line of code.

The application is not a complicated or a full-featured CMS. Rather, it is a simpler one which is very suitable for managing basic websites.

It comes with variables like adding pagination, displaying summary or the full content, RSS generation & much more.

Phpns is multi-user, can create SEO-friendly URLs & optionally, helps you create/manage templates.

The application is built with PHP, uses MySQL for storing the data & comes with a web-based installer.

BigBlueButton is an open source video conferencing application which is specifically built for remote learning but can be used for standard meetings as well.

The application enables multiple users to login & share their webcam or communicate via VOIP at the same time.

It is a very ideal application for presentations as users can upload PDF or office documents & keep everyone in sync with their current page, zoom, pan, mouse pointer etc.

Also, users can share their desktop with others easily.

There are 3 user types:

• Presenter: can upload presentations & sharing their desktop
• Viewer: have no authority within the conference, can only view & chat with other users
• Moderator:can upload presentations, share the desktop & change user types of other users.

Users can raise hands to get the attention of the presenter, mute any other participants they want & chat between themselves in public or privately.

BigBlueButton completely relies on open source technologies & it can be improved further with the API provided.

Ketchup is an easy-to-customize (in means of appearance & functionality) jQuery plugin for validating user inputs on the client-side.

The plugin works by inserting the validation rules inside the markup, just like:

<input type="password" id="new_pass" class="validate(required)" />

It comes with a bunch of ready-to-use rules, including: required, min/max length, number, URL, e-mail & much more where new ones can be created as well.

Using Ketchup, it is possible to combine validations (a field can be both required & e-mail).

Although the default setup of the plugin is very satisfactory, like mentioned, it is possible to create a new look & feel (which is easy with the documentation provided).

LiveUI is a powerful, flexible & open source rich internet application framework for .NET.

It has a modular system which allows sharing .ascx user controls & resources between ASP.NET web applications.

Working with JavaScript from ASP.NET applications becomes simple as the framework includes tools for JavaScript generation, caching, dependency management & more.

LiveUI has an Extjs.Controls module which includes ASP.NET wrappers for all ExtJS components making usage of them so easy inside ASP.NET pages.

Also, there is a built-in solution for URL parsing & generation which means creating user friendly URLs is not a problem with the framework.

todoyu is an open source task/project management, time tracking & collaboration application that is built with PHP.

The application has a modern, Ajaxed interface where both users & clients can have roles on projects.

Using todoyu, projects can be divided into multiple milestones with sub-tasks that are assigned to users.

The time worked on every task is recorded which can be used in future analysis or billing purposes.

Optionally, todoyu can auto-generate invoices after completion of a project & export them as PDFs.

The application also has a built-in calendar for managing appointments.

jqFancyTransitions is a jQuery plugin for displaying images as a slideshow with fancy effects.

It has support for 3 transitions: wave, zipper & curtain but they can be diversified with the ability of setting the position & direction of the animations.

The slideshow has few other configuration options like:

• delay between transitions
• delay between strips
• number of strips
• title speed
• title opacity

Compared to many other slideshow scripts, jqFancyTransitions doesn't require an unordered list of items but, simply, needs an element wrapping the images.

AeroSQL is an open source web application, for managing MySQL databases.

It can control databases from different servers in a single, desktop-like interface where records can be easily browsed or edited within a grid.

The application displays every query executed & can run a batch of sql queries to save you time.

It is possible to select the columns to be displayed while editing a table which will help reaching the data in an organized way.

AeroSQL is built with PHP & uses ExtJS to provide the desktop-like functionality.