Do search engines increase weight for microformats?

Question

For example, if I had

<a href="http://www.example.com">My friend Bill</a>

or

<a href="http://www.example.com" rel="friend">My friend Bill</a>

Will Google, for example, give extra weight to the second, because I indicated that they are friend?

Answer 1

According to their documents for webmasters, microformats can be used to display additional information in the search results, but do not affect the ranking of the page.

http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=99170