A Tag Cloud is a method of visualizing information which uses a list of keywords. Often these words are sorted alphabetically and shown in an extra box in different sizes and/or colours according to their weight/importance for the page presented. This method enables to document concurrently the order of importance of words in two dimensions: alphabetical order and sorting by weight. Tag clouds are used in open indices and weblogs.
pm_Cloud by Präsenzmanufaktur Gerwin Müller: pm_Cloud
simpleCloud by NMuD: simpleCloud
lktags by Leonid Koninin: lktags
jCloud_XH: jсloud