html How to use the Title Element in an HTML Document.

Only one title is allowed per document. It is not required to have a title element in a document, although if your document will be available to the web, it is useful to define a title for the document. The title will be displayed, for example as the page header or window title. The search engines display the document title on search results.

Things to be aware of when writing the document title, with regard to browsers and search engines.

The search engine sites will have limits to the length of the title which they will display. Sites such as Google, Yahoo, etc will not display long document titles, Google limits the length of titles to between 60 and 70 characters.
The accuracy of the title. The title of your document is displayed by search engines, (often highlighted), and as such will be what catches the user's eye. Enter your title your title into the various search engines, see how you can refine your title so that it stands out among existing documents.
The title of the document is likely to included by the search engine as part of it's keyword search. In fact, the keywords of the document title are likely to be given extra significance by search engines. In addition, some search engine algorithms may derive significance from the order of keywords in the title.
A unique title is more likely to show up on the top of a list of search results, then a title which is common place. Take advantage of length of titles displayed by the search engines. For example, Google uses just under 70 characters for the length of the displayed titles.
Capitalize the first letters in key nouns will often make your search results stand out. All uppercase titles or all lowercase titles may not appeal to users while they are reviewing their search results.
Certain keywords in the title can be useful, think about your own search criteria. Often words like "best", "free", "shareware", "examples", "samples", "downloads" are included in search criteria, if possible incorporate them into your title.