Now here are 10 easy, cheap ways to improve your SEO.

1) Don't install any sample data when you set up a Joomla! site.
When you launch your Joomla! Site, it’s very easy to forget to delete all the demo articles that come with it. That will give you pages, links and newsfeeds that are irrelevant to your topic. Delete your sample data and don't forget to empty your trash as well!

2) Your Site Name should be your site’s name.
There can be a temptation to cram as many keywords as possible into the "Site Name" field. It doesn't help and when users register at your site, they get an email saying "Welcome to Widgets, Buy Widgets, Cheap Widgets, Bargain Widgets!" You don't want that.

3) Turn off your PDF links.
When we analyze Joomla! Sites, we often find PDFs ranking higher than the original pages. Because PDF pages have no menu links, they're a dead-end. Users can't move from the PDF to the rest of your site. So turn off those links.

4) Don't waste your site's link juice with lots of social bookmarking links.
Lets face it, very few pages have a chance to hit the Digg home page or do well on Reddit, so only place those buttons on your best articles. Your visitors appreciate clean, uncluttered pages -- and so do search engines.

5) Redirect the www and non-www versions of your site to the same place.
All you need to do is add this little piece of code to your .htaccess file. Note: Replace MyDomain with your domain name and .com with your domain extension.

The easy way to learn and make template joomla  that is using blank template .

Detail this template 

• Tableless Validating XHTML/CSS based layout
• SEO Source Ordering
• Collapsible left and right columns
• Sixteen collapsible module positions
• Suckerfish dropdown menus
• Suckerfish flyout left column menus
• Suckerfish flyout right column menus
• Fixed narrow width / fixed wide width - with styleswitcher
• logged in user only message - to demonstrate the Joomla 1.5 replacement for the old ($my->id) check
• Left-to-Right language aspect / Right-to-Left language aspect
• On page anchor links - to demonstrate how to add anchor links in Joomla 1.5
  
•  Link down

{mosgoogle}

It is good SEO practice to put the page title first in your title tags, and then your site name. Unfortunately, by default, Joomla places the site name first before the page title.

To change this, grab a copy of the file /includes/joomla.php

Around line number 507, replace this:

$this->_head['title'] = $title ? $GLOBALS['mosConfig_sitename'] . ' - '. $title : $GLOBALS['mosConfig_sitename'];

With this:

$this->_head['title'] = $title ? $title .' - '. $GLOBALS['mosConfig_sitename'] : $GLOBALS['mosConfig_sitename'];

 { socialbookmarker}

You can use google gadget as a joomla module

1 Go to google gadget

I was just cruising through a bunch of stats for some sites we run and got frustrated with the simplest thing... 

...Joomla's inherent URL paths are really annoying when you want to move quickly through your stats reports and see how specific site content is reacting with your visitors - even the stock 1.0.x Search Engine Friendly (SEF) URLs aren't too intelligible to people despite making Google slightly happier.  Things will change in this respect when 1.5 goes stable - its supposedly going to ship with a stock solution for human-readable URLs!! (yay)