Tagging – silent but deadly for Google?

I’ve been daydreaming a lot lately about re-doing Lookmarks (my bookmark tagging Web site). Also, I’ve been following a friend’s success with TagCow (automated photo tagging). I was inspired to see this quote on Mashable today about tagging:

Tagging is quietly but massively disruptive. The fact that thousands of webmasters and bloggers tag their content so that they can be found by Google is Google’s secret weapon. But it could get turned against them. A small incentive to be found by other search engines will change tagging behavior. This is likely to play out in lots of vertical niches, where a small change in tagging behavior can make a huge difference in findability and that can make a big difference to both buyers and sellers. Whether people use RDF or Microformats or some other defacto vertical standard will continue to be the subject of much debate, but the format itself is not the issue. The human drive to tag (to order one’s world) is deep and strong and has financial motivations as well.

11 Search Trends That May Disrupt Google – ReadWriteWeb

I know from my experience with Lookmarks that Web site owners are ambitious taggers. I’ve got some ideas around harnessing and enabling this desire – but you’ll have to wait until Lookmarks 3.0 to see them.