Well, the term 'plumbob' has reached the top of the list on a yahoo search! It is still on page 8 of a google search though. It is very interesting how these search engine giants work. I highly recommend reading a book called The Search, if for no other reason than google is now a conerstone of the market you and I are a part of. Even if you don't use google, the company is shaping the economic landscape you inhabit. It's absolutely astounding.
*UPDATE* I Drupal's core reports, there is a page view of the 'top referers' or places that people clicked on a link to this site. For example, if I emailed you a link, and you opened that link from your gmail acount, the referrer would show that it came from a gmail account. More exciting is if someone does a search on Google or Live or what have you, and they click into your site, the referrer entry shows what the search was and where your site appears on that search result. As it is, the term 'plumbob' is also at the top of the list on a MS Live search as well. And it has started to climb and is the first entry at the top of page 8 on a google search now.

Anyway, these search results are simply a few metrics, albeit important ones at the global level. But what it can't measure very well, or at all easily detectable, is the social conversation and word of mouth metrics.
These are what I'll refer to as local metrics or social metrics. On the internet these days, all the talk is about social networks; like myspace and facebook. But a lot of what goes on on these sites is not social in the human sense, but rather in a digitally divided sense. What I believe the digital social networks need are roots in a locally relevant connection; like European(especially old-world) urban spaces. And I don't believe it will happen with tools like myspace and faceboook which are proprietary islands owned by single companies.