I frequent other craft networking sites that use tag clouds (or some other web-savvy vocabulary I'm not familiar with):http://www.craftster.org/
(all kinds of crafting)http://www.ravelry.com
(knit & crochet)
When you submit something to be viewed/shared with others, you tag it appropriately with many attributes. Users can search for items based on whatever attributes they like.
Tag clouds basically show the frequency that items are tagged by making the text of the tag bigger.
What I'm really looking for is a better way to search. This is an example from ravelry. The entire left column are attributes I can use in my search. Across the top where I've highlighted are my current search attributes that I can easily manipulate.