SEO & Site Structure - Content from a technical perspective

This post is a continuation of the previous post (SEO & Site Structure – Content (Updated)).

The following will give you the technical perspective, but i promise to show you the non-technical side in another post.
The 1st 3 items are located in the header area of the page - so all exist within <head> & </head> area.
Page Title Example: <title>Google PageRank</title>
Page Description Example: <meta name="description" content="It's Google's view of the importance of the page.
The higher the PageRank of the page is, the better its chance to show on top of Search Engine Results Pages." />
Keywords Tag Example: <meta content="Google, PageRank, SEO" name="Keywords" />
Heading Tags Examples:
<h1 id="site-title"><span><a href="" title="Mais AbuSalah- Your Online Reputation Under Control" rel="home">Mais AbuSalah&#8211; Your Online Reputation Under Control</a></span></h1>
<h2 id="site-description">Your online reputation under control</h2>
Alt Attribute of images example:
<img  alt="Mais AbuSalah- Your Online Reputation Under Control" src=""/>
Title tag for links example:
<a href="" title="Google PageRank"><b>Next Post</b></a>
URLs - Example:
Text Density Vs. HTML - it needs certain tools to check, so we'll get back to that later.

Stay tuned for the non-technical post.