About 2.5 million blogs posted at least one tagged post in February 2007. Source

"The State of Tags The explosive growth that we see in the Technorati index is mirrored in social media sites throughout the Web, including Flickr, YouTube, and the like.

This shared phenomenon allows us to marry the wealth of information in our index with the wealth of that stored on social media sites across the Live Web through the shared construct of tags.

For the uninitiated, a tag is a category or descriptor that someone (often the creator) assigns to it . This descriptor literally hangs off the media that's published to the Web much in the same way a luggage tag hangs off your suitcase -- easily identifying the bag.

The bottom line: we're seeing explosive growth in the tags index. People are clicking on tags, people are using tags, Google features tagged media in its results pages. Tags adoption has become a phenomenon across the Live Web, and we are seeing a correlative explosive growth at Technorati.

On to the numbers:"

About 2.5 million blogs posted at least one tagged post in February 2007. Source

"The State of Tags The explosive growth that we see in the Technorati index is mirrored in social media sites throughout the Web, including Flickr, YouTube, and the like.

This shared phenomenon allows us to marry the wealth of information in our index with the wealth of that stored on social media sites across the Live Web through the shared construct of tags.

For the uninitiated, a tag is a category or descriptor that someone (often the creator) assigns to it . This descriptor literally hangs off the media that's published to the Web much in the same way a luggage tag hangs off your suitcase -- easily identifying the bag.

The bottom line: we're seeing explosive growth in the tags index. People are clicking on tags, people are using tags, Google features tagged media in its results pages. Tags adoption has become a phenomenon across the Live Web, and we are seeing a correlative explosive growth at Technorati.

On to the numbers:"