Microdata help

Question

I am trying to help Google generate relevant details for my site. I am currently using this as breadcrumb:

<div id="breadcrumb">
<span class="crust" itemscope="itemscope" itemtype="http://data-vocabulary.org/Breadcrumb">
    <a href="http://www.radonsystems.net" class="crumb" rel="up" itemprop="url">
        <span itemprop="title">Home</span>
    </a>
    <span class="arrow">
        <span>&raquo;</span>
    </span>
</span>
<span class="crust" itemscope="itemscope" itemtype="http://data-vocabulary.org/Breadcrumb">
    <a href="http://www.radonsystems.net/business/profile.2" class="crumb" rel="up" itemprop="url">
        <span itemprop="title">Business Profile</span>
    </a>
</span>
</div>

However, this does not help Google at all, even the testing tool does not generate a groumb link, although it sees microdata and correctly identifies them as search microdata.

Any ideas?

Answer 1

What I did was add a new column in which numbers can be entered as a format: 1,3,4. Then I extracted it from the database, blew it into an array, and for each number I got information about this link identifier: url, text, and then output it.

Answer 2

data-vocabulary.org http://schema.org, Google, Yahoo Microsoft. , .

, webpage - , . http://www.schema.org/WebPage

Answer 3

If you want to list your pages, you need to create a version containing enough substance to look for.