This plugin uses Yahoo to analyze your content, this means no filter lists, no guessing, no fuss. Simple SEO gives you real feedback on what your content is saying and creates Meta-Tags for you.   

This component implements Search Engine Friendly URLs. It automatically provides permanent redirect headers when a non-SEF URL is submitted to a SEF enabled site. Conversely, provided Remosef is kept installed, if SEF is turned off, then a SEF URL will be redirected to a non-SEF version. Permanent redirects are the best way to tell search engines that pages have new URLs, and also avoids giving search engines the impression of duplicate pages. (Although please note that the PDF, print, email icons cause problems in this respect).
Note that it is essential to install a suitable .htaccess file in the document root of your Joomla installation. You should modify the standard Joomla .htaccess file so that the last effective SEF line reads:
RewriteRule ^(content/|component/|jos/) index.php
Note that Remosef for Joomla ALWAYS uses a prefix of some kind. Without further help, it will use the familiar "content" and "component" prefixes. If a sef_ext.php file is provided and activated for a component (by recording the component in the admin interface) then a third prefix will be used. By default it is "jos" but you can set it to something else in the admin config. If you change the config, you MUST change .htaccess to match. Using a prefix is important, as otherwise spurious URLs can become established in search engines, and page not found (error 404) processing will not work properly. This is very important for success with search engines.
Parameters can be configured through the administrator interface, which is currently a bit crude, but should be effective. 

This mambot will search through the content of the page being viewed and will append frequently occuring words to the keywords section of your meta data (on the fly).

This plugin will help you to make your website’s content more Search Engine Friendly (SEF). It dynamically creates meta keywords, meta descriptions, changes the title on the fly, adds heading tags to content titles and more. Some features:

• Show, hide or override keywords, site name, content title, first paragraph in the title and more.
• Adjustable element order in the title.
• Sticky words to give keywords more weight.
• Bad words and characters to exclude from the keywords.
• Enable or disable elements on the front page.
• Front page title and meta replacement text.
• Heading tag selection (Add H1, H2, H3 tags to content titles)

If you've ever tried to do SEO (search engine optimization) for your Joomla site, you know how tedious it can be. You have to open each item individually, enter the keywords, type in the descriptions, save, and... start all over again with another item. It can take days! Especially if you have a site with a lot of pages. iJoomla Metatag Generator solves all these problems with just a couple of clicks! Also supports Mosets tree directory!