The Title-tag is one of the most important pieces of information for a search engine. The Title-tag should describe exactly what the web page contains. It should contain keywords, but not repeats, of terms you hope to be found for. It should also be as readable as possible. The Title-tag will be the first thing someone sees in a search result.
The Title-tag should be no longer than 70 characters and should contain words and phrases that accurately describe the content of a page. Try to make the Title-tags located throughout your site unique and relevant. Every word in the Title should be contained somewhere on the page they are used for. Research has also shown that a strong call to action will usually produce more clicks than a basic description.
The META-tag is used to store information about a web page but is not actually displayed in a web browser. For example, META-tags provide information such as what application was used to create the page, a description of the page, and keywords that are relevant to the page. Many search engines use the information stored in META-tags when they index web pages.
As I stated earlier, META-tag information is not displayed in a web browser. However, if you view the source code of any web page you will see the HTML code behind that page. To see the code, simply go to any website using Internet Explorer and click "view" then "source."