Round 1 -- Library H3lp
http://code.google.com/p/libraryh3lp/

Round 2 -- Animoto
http://animoto.com/

Round 3 -- Link It
http://www.lib.k-state.edu/help/link/

Round 4 -- StumbleUpon
http://www.stumbleupon.com/

Round 5 -- Jing
http://www.jingproject.com/

Round 6 -- SlideShare
http://www.slideshare.net/

Round 7 -- Poll Everywhere
http://www.polleverywhere.com/

Goodreads with customization
http://www.goodreads.com/