Oh so quietly Google added a tagging feature to their My Search History product.
I believe Google will eventually find ways to trust Google accounts more the same way they trust domains more as they age. The tags surely can be abused, but so can links. Just like link anchor text, the tagging could be used by Google to help understand the aboutness of a page or site.
It would take a good bit of knowledge to create a variety of random Google accounts that had regular and unique search habbits over time. Google does not need to try to stop all search spammers, they only need to make search spamming so complex or expensive that most people would just rather put in the effort to create something of high quality.
Yahoo! added a rich get richer factor into their algorithms, adding blogs to their news search. In an interview with Forbes.com Joff Redfern, a director in Yahoo! Search, stated blog rankings may be due in part to the number of My Yahoo! subscribers:
"If we've got more people subscribed to a blog, there is presumably more credibility to its reputation," says Redfern.
You gotta wonder how many fake accounts are getting set up as I type this.
Do any SEO websites sell search behavior or established user accounts yet? If not I wonder how long until they hit the market and how long until those services are claimed on many sites :)
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