Glossword is extensions for Joomla! to create and publish online dictionary, glossary, or encyclopedia. It features SEF support and SEO enhancements, visual themes, a multicolumn listing of terms, export/import dictionaries in XML and CSV format, built-in search and cache engines, a multifunctional feedback form with CAPTCHA, UTF-8 encoding, XHTML 1.1.

In most cases it is not necessary to have mootools.js framework included in every Joomla! page since this affects performance and can raise conflits when you will try to use next version of mootools framework in one of your components. In this plugin it is useful to remove mootools from Joomla header and add it only when needed.

Phoca Guestbook is a simple guestbook with Captcha system where you can define forbidden words that will be not displayed for Joomla! 1.5. Phoca Guestbook added new Captcha image(you can select if you want to display Standard Captcha, Math Captcha, TTF Captcha or combination of these three methods - one of them will be randomly selected)

JEZ reCAPTCHA Integrator is a Joomla reCAPTCHA integration as a system plugin for Joomla! 1.5. This integrator is developed to help protect web form in your Joomla website from spam bots using free captcha verification service provided by reCAPTCHA.  JEZ reCAPTCHA Integrator is released under GNU General Public License.

ContentPassword is a joomla plugin you can protect several contentitems with a password. To see the Content dont have to register, they only need to know the password.

Basic Tags is a very useful Tags Extensions(component, module, plugin) for Joomla! 1.5 is simple, uncluttered and easy to use a basic tagging implementation Joomla site. it's uses only the exposed Joomla APIS, no messy code-patches needed, Includes fully functional tag detail views, Tag info view, Articles for tag list.

This Free Joomla Gallery Plugin released by JOOBLOGs.COM that t's similar YOOGallery with Horz bar:Scrollable Navigator, but it's alpha version that NOT work with IE and could make conflict with some mods / plgs that use mootools.

Community Builder suite (CB) is the free Joomla! Community user management system. It's support extra fields in profile, enhanced registration workflows, user lists, connection paths between users, admin defined tabs and user profiles, etc....