Page Headers and SEO

[mandy]

...while having a great SEO potential, a header may cause some serious problems as well:

    * an over-optimized header may cause incorrect rankings (e.g. when home page is ranked higher than a more relevant sub page for example);
    * an over-optimized header may lead to penalties (e.g. many of us saw penalties caused by internal anchor text over-optimization).


Most often questions related to header div SEO include:

    * is it wiser to use a text link or a (linked) image banner?
    * what’s preferable: to use keywords or a brand name as an image alternative text or link anchor text?
    * should “home” link be “nofollowed”?

full article: http://www.searchenginejournal.com/header-div-seo/7569/