shi zhao wrote:
see http://www.google.com/googleblog/2005/01/preventing-comment-spam.html
Are we can join in the exterior links (rel="nofollow") , preventing wikispam?
I think that it should be in a new XML namespace, not in the XHTML one, if we are talking about XHTML documents. Something like <html xmlns:gsp="http://www.google.com/ns/googlespam-1/"> ... <a gsp:nofollow="1">...</a> </html> The reason is that someone else might want to use(or already be using) nofollow for some other purpose(especially since it is not very intuitive as to what it does, perhaps norank would be better).
In terms of using it with Wiki, perhaps this should interact with validation(when it is implemented) or patrolling in some way. An ad hoc approach would be to drop the nofollow in links first added in a change which has already patrolled pages. This would, however, require that this state be stored , maintained, and read in some way on a per-link basis, which may be to costly to justify(unless it also offered some other benefit to the Wiki users).
[[zh:user:shizhao]]
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