Listing 4 datasets tagged with "tagging"

This is a set of artist tag data collected from Last.fm using the Audioscrobbler webservice during the spring of 2007. The data consists of the raw tag counts for the 100 most frequently occuring tags that Last.fm listeners have applied to over 20,000 artists. An undo …

A record of all bookmarking activity on delicious.com for a roughly 10-day period in September 2009. Format is JSON, one record per line. There are 1.25 million entries. Download size is 170 MB. Sample record:

{"updated": “Tue, 08 Sep 2009 08:45:00 +0000”, “links”: [{"href": “http://w …