First let me say that people use the terms “Title-tag” and “Page-Title” to explain the same area.
The title-tag is at the very top of your computer screen. Unless you have changed your settings the bar should be blue. If you look at the top of this screen you will see that my title-tag says “What is a Title-Tag? | What is a Title Tag? | What is a Page Title? | SEO Blog SEO Aware”
Title-tags are talked about so often because it is a crucial area, and perhaps the most important area, to optimize. When the search engines come to your website they look at the title-tag first. They look at the keywords and see if these keywords are in the meta-keywords, meta-description and in your content. These are the four main areas that need to be optimized and these are the four areas the search engines want to see your keywords/keyword phrases in. .
Edit- 5-23-07 Articles I have found:
http://www.highrankings.com/allabouttitles.htm
———————————————