my bad; when i said "apps" I was thinking specifically of mashups.
of course if someone writes their own app over their own data it doesn't 
matter how they do it.

Richard Cyganiak wrote:
> On 1 Mar 2007, at 04:39, David Karger wrote:
>
>   
>> This is why web 2.0 contains the seeds of its own destruction.   
>> Everyone
>> writes web-2.0 apps by scraping web-1.5 pages (the ones that use  
>> <div>s
>> to define structure instead of just using <p>s to define  
>> formatting) but
>> they produce pages that can't be scraped.  If ever a substantial
>> fraction of the web becomes 2.0, it will collapse from the lack of 1.5
>> pages to scrape.  The solution, of course, is the exhibit model, where
>> the data is naked and can be scraped no matter how much you dress  
>> up the
>> presentations.
>>     
>
> Sorry, but I don't buy any of this. There are no prominent Web 2.0  
> application that work by “scraping web-1.5 pages”. And most prominent  
> Web 2.0 sites can be scraped just fine. And a substantial fraction of  
> the Web already *is* 2.0, without showing any signs of collapsing  
> from lack of pages to scrape. Data re-use on the Web 2.0 isn't about  
> scraping. It's about REST and SOAP APIs [1].
>
> Best,
> Richard
>
> [1] http://en.wikipedia.org/wiki/Web_2.0
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