Is there any precedent or testing of using a breadcrumb list of separate links (and current page text) within an h1 and search engine algorithms?
I'm using nested navigation on a travel site. So imagine a breadcrumb might be:
<a>Great Britain</a><a>London</a><a>Leicester Square</a><b>Photo Gallery</b>
In this instance this would be a descriptive, though perhaps dubious in density, header. In the end I went a different path but I would be interested to hear if this would be acceptable. Disregarding the content of my example, would such a header be acceptable to web crawlers. I guess it's safe to assume it's not valid xhtml.