Various tab to INCLUDE IN HEAD part for SEO and better search result

Below tags should be included in Head part with proper content to get SEO.

<meta name="google-site-verification" content="" ></meta>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" ></meta>
<meta name="Author" content="COMPANY NAME" ></meta>
<meta name="Keywords" content="Here comes various keywords with ',' separator" ></meta>
<meta name="description" content="HERE COMES YOUR DESCRIPTION" ></meta>
<meta name="Copyright" content="? 2009-2010 www.website.com"></meta>
<meta name="Publisher" content="Company name." ></meta>
<meta name="document-classification" content="TAG LINE" ></meta>
<meta name="document-type" content="Public" ></meta>
<meta name="document-distribution" content="Global" ></meta>
<meta name="robots" content="ALL, INDEX, FOLLOW"></meta>
<meta name="googlebot" content="index, follow" ></meta>
<meta name="revisit-after" content="7 Days" ></meta>
<meta name="Expires" content="never" ></meta>

From above, it is not necessary to include all META tags. Basic and important META tag are KEYWORDS & DESCRIPTION