The previous post reminded me of extisp.icio.us, a tool for visualizing del.icio.us bookmarks. The original extisip.icio.us created an even more cloud-like 2D text mapping of del.icio.us tags. Creator Kevan Davis has now, I notice, added "extsipicious images" a mosaic of images corresponding to one's tags based on a Yahoo image search. It's certainly a clever bit of web trickery, but probably less practical than the text version.