How does G Maps identify store hours and reviews on other sites?

[DiscoStu]

I've been playing around a bit with hCard which allows you to input an address in a format that shows what part is the city, telephone # etc
(See below for example)

However, as far as I can tell there's no way to tag business hours, so I'm interested if there's a known way in which I can make that clearer to Google. Also, I'm interested how Google recognizes that a comment on a particale website is a review? G maps sometimes pulls reviews from other sites, does anyone know what signals they rely on for this?

[2]
<div class="vcard">
<abbr class="geo" title="Lat;Long>
<strong class="fn org">Business Name</strong></abbr><br />
<span class="adr">
<span class="street-address">Street Address</span><br />
<span class="locality">Town/City Name</span>,
<span class="region">State</span>
<span class="postal-code">Zip Code</span>
<span class="country-name">USA</span><br />
</span>
<span class="phone">
<span class="tel">
<abbr class="type" title="voice">Telephone: </abbr>
<span class="value">Telephone Number</span>
</span><br />
</span>
Business Categories:
<span class="category">Category 1</span>,
<span class="category">Category 2</span>,
<span class="category">Category 3</span>
</div> 
[/2]

[edited by: inbound at 11:26 pm (utc) on April 13, 2009]
[edit reason] Removed (already examplified) Specifics [/edit]

[bill]

Go to the Google Local Business Center and add your business. They let you add details like business hours, photos, etc. and it all shows up on the maps.

If you just wanted to do that with markup then the microformats hCard [microformats.org] standard might allow you to put extra information in a field, but not with that specificity.

[anallawalla]

I think you are asking how can a review site's content show up in the Reviews tab of a large number of listings, e.g. restaurants.

Google has contracts with well-known review sites, so this is what I see in Australia. I am not seeing "little" sites coming up in the ones I checked.

[Robert Charlton]

Take a look at this discussion for some background...

How to Show Up as a Map in the Local Search One Box
[webmasterworld.com...]

[DiscoStu]

I meant in terms of citations...when G scans different websites it looks for signals to determine if there's anything on other webpages that supports the info they already have. By making sure your address shows up on many other websites G will use those as citations...my question is if there's a particular format or way of tagging that will let G know when they scan a web page that they're actually looking at business hours (as opposed to some other number)

[bill]

In Japan the map data from review sites contains extra detail data if it is filled-in on the review forms of the respective review sites. Google Japan has about 4 sites that they use, and they appear to follow the format differently for each. I was digging around for examples of sites that pulled business hours and showed them in the snippet, but I wasn't successful. That doesn't mean they aren't there. ;) I think Google has just set itself up to scrape the data of that particular review site. So, if you can find business hours listings from a review site, then you'd want to check their forms.