I just whipped up a teeny tiny web service called Folksonomatron, using Sinatra, a web application framework written in Ruby. You give Folksonomatron a URL, and it gives you back a comma-separated list of that URL’s most popular tags, according to delicious.com. This service will likely grow into a more robust tag suggestion service, with aggregate tag lists from sites other than delicious, but this is a start. I plan to use it to build an ajaxy tag suggestion mechanism for Queriac.

Samples URLs and Results

http://google.com: search, google, searchengine, engine, web, searchengines, reference, internet, tools, research

http://rubyonrails.com: ruby, programming, rails, development, web, rubyonrails, framework, web2.0, webdev, ajax

http://carrotmob.com: activism, environment, green, social, flashmob, sustainability, nonprofit, politics, consumerism, shopping

For the nerdy: the source can be found at github.com/zeke/folksonomatron.