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Sorry, I just realized this is a dupe. Dan posted the same link a few hours ago:

http://news.ycombinator.com/comments?id=5471

I'd class this as a problem. Delicious solves this by having the link on submission checking for uniqueness. If the link has been submitted previously you can't re-submit. The submission process should also be checking for link aliases (/index.html, index.htm, index.php).

Should be added to the todo list.

news.yc already takes care of that. I was able to get by it because I posted a direct link, while Dan's link went through Guy Kavasaki's blog.

Damn, missed that. How do you check, rectify for that? aside from honesty? It's a matter of the more authoritative source, so how do you check one link is more authoritative than another algorithmically?

If I were to tag this link, it would've been "Guy, Kavasaki, Eric, Schmidt, Google, CEO, Interview". There is a good chance Dan would have done the same. So tagging helps a lot.

Moreover, tagging leaves open the option to build recommender systems through collaborative filtering. I believe one of the reasons Reddit's recommendation tab was broken for so long (and still is) was because it was difficult to relate content without the use of tags.

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