For every e-commerce website, web application or even a standard website, knowledgebases are very useful systems for helping users to find answers themselves.

68KB is a free knowledgebase application that is built with PHP & MySQL & can be themed to match the look of any website.

It has support for unlimited categories/sub-categories & SEO friendly URLs. Also, features like an "integrated glossary", "popular & new articles" makes browsing much easier.

With the help of an admin interface, it is possible to manage the system easily, view the stats, search logs & more.

68KB is multilingual & built with the CodeIgniter framework.

Uploadify is a jQuery plugin for implementing single + multiple file uploads easier & better.

It requires Flash (which completes the upload) & a server-side file in any language (. PHP one is included) which processes the uploaded file.

The plugin offers various options to control & customize the upload interface like:

• files types
• max. number of simultaneous files
• auto or manual start of uploads
• size limit
• callback on every step (onSelect, onCancel..)
• & more..

And, implementation is as simple as any other jQuery plugin; just by calling a function.

phpMyBackupPro is an open source application for taking scheduled backups of MySQL databases & FTP files.

It offers a flexible usage as backup jobs of multiple databases/files from multiple servers can be scheduled, completed & compressed.

Backups can be taken to any location including remote FTP servers.

Besides taking backups, phpMyBackupPro can restore & e-mail backups. As a third option, it is also possible to download them.

The application has mutlilanguage support & 10+ language files are ready for download.

qWikiOffice is an open source project for creating desktop-like web interfaces.

With the power of Ext JS Library (& PHP), it offers a very similar usage to desktops with:

• windows
• start menu
• dialog boxes
• taskbar & more..

Gritter is a jQuery plugin for creating Growl-like notifications with ease.

The notification bubbles created looks very similar to the ones in Mac OS X & they can be styled easily if wanted.

It is possible to create multiple notifications where each of them can be controlled with their unique IDs.

They can be set to disappear automatically after x seconds or stay until removed manually with the "sticky" option.

You can also mention the speed of the fade effect used while the notifications appear/disappear.

TypeSelect is a JavaScript-based solution for using selectable custom fonts on the web.

It combines the power of typeface.js, jQuery, the canvas, toDataURL, CSS background properties & real overlayed text to accomplish this feature.

TypeSelect is very easy to understand & implement. It is totally controlled via CSS & no server-side files are required.

It has support for double/triple-click selections, UTF-8 characters & gracefully degrades in IE6.

On the other hand, currently, it has some limitations like unselectable text in IE, not being able to use :hover or line breaks & few more.

John Resig is sharing very functional script named Easy Retweet Button that will simplify "the sharing of your content on Twitter".

It is an unobtrusive JavaScript file for displaying a retweet link with a shortened URL via Bit.ly (similar to Tweetmeme) & number of clicks came to that content from Twitter.

Easy Retweet Button has 2 ready-to-go styles: vertical & horizontal. And it can be easily themed as only HTML, CSS & JavaScript is used.

It is possible to customize the "Retweet" text, prefix of the tweets (like RT @..) & Bit.ly username / API key to be used.

It offers various advantages like:

• speed: it works completely asynchronously
• tracking: all the tracking is done via Bit.ly & clicks from retweets can be tracked from a single interface

Steps For Using It With WordPress:

This is nothing complicated but can save your time:

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This is an open source PHP application which can convert any RSS feed into a PDF newspaper.

It works flawless with fetching only the text & ,currently, has a partial support for images.

The application uses other open source codes like:

• TCPDF
• HTML Tidy
• SimplePie
• HTML Purifier
• SmartyPants
• OPML Parser

If a feed shares a part of the original content, the application has an option to fetch the complete content as well.

Although the application may not seem interesting for many developers at first, the code & the function itself is an inspiration+resource for offering more out of feeds.

SlickMap CSS is a stylesheet for transforming HTML unordered lists into attractive sitemaps.

The stylesheet can easily fit into most of the websites as it supports up to 3-level navigations.

It also provides a functional visual output by displaying the URLs besides the titles. For a demo of SlickMap CSS, click here.

Visualize is a jQuery plugin which converts tables to charts & graphs using the HTML 5 canvas tag.

The usage of tables is very important the data is already formatted in a way that is accessible to users browsing the web with a screen reader or other assistive technology.

The plugin offers a very easy usage as calling a function like: $('table').visualize(); is enough for creating a line, pie, bar or an area chart from a table.

Visualize offers various methods for customizing:

• the type (line, pie, bar or area)
• width & height
• title
• color
• margins
• & more

Here is a customizable demo to test the plugin completely.