some challenges...(add-ons)

Bloglines

A comprehensive, integrated service for searching, subscribing, publishing and sharing news feeds, blogs, and rich Web content. It's free and easy-to-use.
http://www.bloglines.com/ bdieu2001

Del.icio.us

a social bookmark manager allowing you to easily add sites you like to your personal collection of links, to categorize those sites with keywords, and to share your collection not only between your own browsers and machines, but also with others.
http://del.icio.us/ bdieu2001

Flickr

Online photo management and sharing application
http://www.flickr.com/learn_more_2.gne bdieu2001

Furl

a free service that saves a personal copy of any page you find on the Web, and lets you find it again instantly by searching your archive of pages.
http://www.furl.net/index.jsp

snow in Norwalk!
teaching and learning is sharing