There are several threads out there discussing how Google has shifted the results of certain niche industry searches. In these searches, members are complaining that (1) their clients are no longer to be found, after several years of top rankings and (2) the results look to be spammy, irrelevant and not useful. Some believe it has to do with the recent acceptance of many blogs and wikis of the nofollow tag. I think it might be too early for that.
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