<meta http-equiv= name= content= scheme= charset=/>

Defines various types of metadata not possible by title, link, base etc

http-equiv

Equivalent to HTTP response (server may remove and include as part of HTTP response)

<meta http-equiv="Expires" content="Tue, 20 Aug 1999 16:23:35 GMT" />

After this date browser should load a new copy from the server rather than use its cache

name, content

Adds meta-information about the document as name/content pairs. The name value can be anything; none are standardised at the moment

<meta name="generator" content="Program that generated this document" />
<meta name="author" content="Bob Hopgood" />
<meta name="keywords" content="keyword1 keyword2 keyword3" />
<meta name="description" content="Description of page" />
<meta name="identifier"  content="ISBN 0-201-17805-2" scheme="ISBN"/>
<meta name="robots" content="index, follow">
<meta name="robots" content="noindex,follow">
<meta name="copyright" content="Oxford Brookes University" />
<meta name="subject" content="meta elements" />

scheme

Used to qualify the value of the name attribute

char-set

Defines the character encoding used by the document. Encoding normally defined in XHTML by the XML declaration. Only one meta element is allowed with a charset attribute

<meta http-equiv="Content-Type" content="text/html" charset="ISO-8859-5" />