Since del.icio.us started with it’s online taggable bookmarks a lot of variatons and additions came to life. Regularly checking the world wide hype has already pointed me to some very interesting sites. Here is a list of sites that track popular sites through these taggable bookmark services:

• spiderous - the hot and fresh from delicious, spurl, furl, linkroll and openbm.
• oishii - ephemeral pheromonal del.icio.us
• officious - del.icio.us popular sites.
• populicious - del.icio.us popular sites.

The first human search engine:

• http://www.zniff.com - uses spurl tags

Tools that use del.icio.us:

• delicious lookup - search on delicious tags
• delicious tools collection
• previous posts on this blog: delicious tools and let people out there describe and classify the links