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Re: .htaccess a major bottleneck to Semantic Web adoption / Was: Re: RDFa vs RDF/XML and content negotiation

From: Martin Hepp (UniBW) <martin.hepp@ebusiness-unibw.org>
Date: Wed, 08 Jul 2009 13:59:00 +0200
Message-ID: <4A548A04.2080900@ebusiness-unibw.org>
To: martin.hepp@ebusiness-unibw.org
CC: Mark Birbeck <mark.birbeck@webbackplane.com>, public-lod@w3.org, semantic-web at W3C <semantic-web@w3c.org>
Google has just changed the wording of the documentation:


The mentioning of cloaking risk is removed. While this is not final 
it is a nice sign that our concerns are heard.


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:  mhepp@computer.org
phone:   +49-(0)89-6004-4217
fax:     +49-(0)89-6004-4620
www:     http://www.unibw.de/ebusiness/ (group)
         http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp

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Received on Wednesday, 8 July 2009 12:10:32 UTC

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