Here are some very useful wiki resource collections from del.icio.us from various users:

David Jakes

Will Richardson

Wes Fryer

David Warlick

Stuart Mader

All del.icio.us users | wiki | wikis

Note: any of these pages produce an RSS feed so those feeds can be collected by an aggregator. The upshot: subscribe to all of these links and anytime one of the these individuals add a link to their wiki page at del.icio.us you will be notified in your aggregator. Develop your own network of individuals who provide you with useful resources about the topics you are interested in!