Some weeks ago we improved and unified the settings for the tag cloud. If you have JavaScript enabled you see now above your tag cloud the options for sorting (Which could be either by frequency (i.e., how often you used a tag) or alphabetically.), layout (You can choose between a cloud or a list.), and minimal frequency (Allows you to show only tags which you used at least that often.).
The SCOT(Social Semantic Cloud Of Tags) ontology is to semantically represent the structure and semantics of a collection of tags and to represent social networks among users based on the tags.
extisp.icio.us text gives you a random textual scattering of a user's tags, sized according to the number of times that they've used each of them, and leaves you to draw your own insights from the overlapping entrails.
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