The extension is based on official Facebook PHP SDK and JavaScript SDK. It is a good for all web developers which want to develop Facebook applications.

Demo: http://americandreampage.com/
Download: http://itprism.com/free-joomla-extensions/social-connection-authentication

Featured:
- Just set up width, height and image path and you are all set
- Different image effects
- Works in Joomla! 1.5 and 1.6

Demo: http://demo.artetics.com/index.php?option=com_content&view=article&id=147&Itemid=159
Download: http://www.artetics.com/ARTools/art-featured-image-slider

This Plugin will adds a web toolbar to your Joomla website, allowing you to provide your users with 1000+ social apps instantly. InsiteBar Plugin Compatible with Joomla 1.6 and Joomla 1.5.

Demo: http://www.insitebar.com/
Download: http://www.insitebar.com/static/plugins/joomla/InsiteBar_1.8_unzipfirst.zip

The menu at the left side of the header picture is designed to fly out from left to right, The main content are is based on 3 columns and it’s seo ready, so you not only will have a great online presence with this template, but will make it possible for search engines to find your site and got new clients searching on google, yahoo or msn.

Demo: http://joomlathemes.co/demo16/?template=jt005_j16
Download: http://joomlathemes.co/1-6-templates/41-hotel

There are several options you can use to display ads on your flavor. You can choose from all sizes and types of advertisements that Google offers.

You can restrict the addition of AdSense code in your selected sections, categories or articles. Also you can put code in selected articles.

Download: http://itprism.com/free-joomla-extensions/google-adsense-extension

To Use
{php}code you want to execute;{/php}
{phpfile}/path/to/php/file.php{/phpfile}
{js}alert(“Code you want to run”);{/js}
{jsfile}http://www.mysite.com/myjsfile.js{/jsfile}
{htmlfile}/path/to/html/file.html{/htmlfile}

Download the IncludePHP for Joomla 1.6
http://www.box.net/shared/5gn48zgeii

Download the IncludePHP for Joomla 1.5
http://www.joomlaperformance.com/component/option,com_docman/task,cat_view/gid,23/Itemid,39/

Demo: http://themes.netzgeek.de/coolblue

Download: http://www.netzgeek.de/kostenloses/coolblue-kostenloses-joomla-1-5-template/

J2XML Importer can import articles, categories/sections, users, images, weblinks.

Download: http://www.eshiol.it/joomla/j2xml/j2xml-importer-1600.html

With JA Purity II, introducing All new JA Mega Menu, which supports multi-columns and ability to load almost anything in the menu items. It does have slight learning curve, therefore, we have made video tutorials and detailed userguide to help in understanding its usage.

CSS sprites have been used, starting with Typography images (check the typo.css file for details and one of the CSS Sprite image, this image alone results in reduction of HTTP requests by 15). Read more about CSS Sprites here.

Demo: http://templates.joomlart.com/ja_purity_ii/
Download: http://www.joomlart.com/forums/downloads.php?do=cat&id=402

Download: http://www.shikle.com/metagenerator.htm