Expanding the HTML <link> Element

I would like to recommend that the following link types are added to
section 6.12 of the HTML 4 Recommendation
<http://www.w3.org/TR/html4/types.html#type-links>:

Parent
    Refers to the document above the present document in a hierarchical
    collection of documents.
First
    Refers to the first document in a linear sequence of documents.  May
    be used in conjunction with "Next", "Prev" and "Last".
Last
    Refers to the last document in a linear sequence of documents.  May
    be used in conjunction with "First", "Next" and "Prev".
Search
    Refers to a document for searching material related to a collection
    of documents.
Author
    Refers to a contact URI for the document author or authors.
    Typically this may be a "mailto:" URL.

Thanks,

Dave