From: Virtosoftware.com on
Virto Tag Cloud Web Part for SharePoint 2007 (MOSS2007/WSS v.3)


Virto Tag Cloud is a simple and useful tool for effective structuring
your data stored in SharePoint lists, and providing easy navigation.
Tag cloud is an intuitive, simple and, thus, extremely popular way to
structure information.

New Microsoft SharePoint 2010 is enhanced with tagging and tag cloud
features, but you still miss them in SharePoint 2007. Using Virto Tag
Cloud you can enjoy all the benefits of such data structuring when
working with your SharePoint 2007 sites!

Virto Tag Cloud web part is essentially a combination of two different
but integrated web parts. The first one allows for extending list
field sets with additional “tag” field. The second web part is
designed for adding a tag cloud to a SharePoint site pages. Being
combined in a single solution, these two web-parts provide users with
powerful tools for structuring and effective usage of information
based on the tag cloud principles. With Virto Tag Cloud you can
quickly structure your SharePoint data and provide easy navigation
according to any classification you define.
[View:http://www.youtube.com/watch?v=65jOA60r9KQ]

http://www.virtosoftware.com/sharepoint-tag-cloud-web-part.aspx