Via Kevin Burton via Niall Kennedy: you can now do Technorati searches on multiple tags using the Boolean "or," such that a search on "folksonomy or ethnoclassification" (has the latter term officially died? There are precisely zero posts with this Technorati tag) will return you all blog posts with either tag. This takes care of some of the ambivalence problems in tagging, but I'm going to echo the sentiments of Tech Crunch and say that the Boolean "and" operator would also be highly useful for generating uber-relevant search results.

It only seems logical there would be a collaborative effort to add a folksonomy component to world mapping - enter Tagzania. Whereas 43places is more travel-oriented, focused on photos and user experience and stories of places, Tagzania makes use of the Google maps API to actually add tags to the maps themselves - so you can set a waypoint and tag it up. Each waypoint then becomes a "page" with an RSS feed, to track what other users add over time. All content submitted becomes open content under a Creative Commons ShareAlike license.

[Via Smartmobs]

Via the excellent You're It! blog on tagging comes word of Dinnerbuzz, a folksonomy for restaurants. Since it's still nascent it hasn't quite reached that critical mass of useful amounts of data yet, but the concept makes sense in the same way that 43places does: everybody travels (or, exists somewhere), and everybody eats. It would be fantastic to be able to go to Dinnerbuzz and be assured of finding a great place to chow down while travelling in unfamiliar territory, or to discover unknown places closer to home. As Alexandra Samuel notes in her post, it's a glaring omission to not be able to narrow a search by rating - so that you can limit your results to only the top-rated restuarants in Palo Alto, e.g. It also remains to be seen if the site will attract enough of a userbase to invoke whatever strange alchemy can transmogrify a codebase into a community.

Update: Justin Smith tells us search by rating has now been implemented! Now that's my kind of turnaround time. ;)

As a travel buff, I'm digging on the new 43places social travel site, done by the 43things Robot Co-op folks. It's yet another Ruby on Rails site, cleanly designed and easy to use, and has the potential to become quite addictive. You can specify the places on your travel wishlist and find out what others have said about those locations, as well as flag the places you've been and rate them, relate an experience, and upload photos. There's also a - bless them - folksonomy component for tagging places, and a whole myriad of ways to find people you might want to connect with - because they're geographically close to you, they live in the places you want to go, or they want to go to the same places you do. Another way cool feature is that if you upload photos to Flickr, tag them with place names and use a Creative Commons license, 43places will pick them up via the magic that is web services. Now if you'll pardon me, I'm off to keep procrastinating feeding my wanderlust. See you in Tibet!