Google has just changed the wording of the documentation:
http://knol.google.com/k/google-rich-snippets/google-rich-snippets/32la2chf8l79m/1#
The mentioning of cloaking risk is removed. While this is not final
clearance,
it is a nice sign that our concerns are heard.
Best
Martin
Martin Hepp (UniBW) wrote:
Dear all:
Fyi - I am in contact with Google as for the clarification of what
kind of empty div/span elements are considered acceptable in the
context of RDFa. It may take a few days to get an official statement.
Just so that you know it is being taken care of...
Martin
Mark Birbeck wrote:
Hi Martin,
b) download RDFa snippet that just represents the RDF/XML content
(i.e. such
that it does not have to be consolidated with the "presentation
level" part
of the Web page.
By coincidence, I just read this:
Hidden div's -- don't do it!
It can be tempting to add all the content relevant for a rich snippet
in one place on the page, mark it up, and then hide the entire block
of text using CSS or other techniques. Don't do this! Mark up the
content where it already exists. Google will not show content from
hidden div's in Rich Snippets, and worse, this can be considered
cloaking by Google's spam detection systems. [1]
Regards,
Mark
[1]
<http://knol.google.com/k/google-rich-snippets/google-rich-snippets/32la2chf8l79m/1#>
--
--------------------------------------------------------------
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen
e-mail: mh...@computer.org
phone: +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
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skype: mfhepp
twitter: mfhepp
Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!
========================================================================
Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/
Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://tinyurl.com/semtech-hepp
Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/
Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe
Project page and resources for developers:
http://purl.org/goodrelations/
Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A Hands-on
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey
http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009
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tel;work:+49 89 6004 4217
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