Why do we need META tags?
When you look through the original text of some HTML pages, you can see several <META...> tags in the <HEAD> section of the page.
Some of them are just kind of some rubbish - software created with, software corrected with and so on. If you do not like extra traffic for your visitors, you better delete them.
But there are three tags, that should always be presented. First two are:
<META name="description" content="short page description">
<META name="keywords" content="keyword1, keyword2, ...">
They give most search engines initial data on the content of the page (some old search engines cannot proceed your page without these tags). Though modern search engines also analyze the rest of the page, these two lines usually create primary search options for you page.
The third line is necessary, if you page is not on pure English:
<meta HTTP-EQUIV="Content-Type" CONTENT="text/html; charset='charset'">
where 'charset' sets a language page to be used. For example, for pages with Russian Windows coding it should be "windows-1251", for Windows coding of most European languages - "windows-1252", and so on. Without this tag the page will be seen by the visitor in some unknown coding and some of them will not think why - they will just leave the page with "rubbish".
