I think that widgets are devices that can work simultaneously in a web page.They make more attractive your personal space, therefore it becomes more popular.
You shall see most apps and site from the web 2.0 here, in a ppt designed to help ESL/SFL teachers cope with the web 2.o in class. Topics disscussed: efl teaching, esl teaching, web 2.0, delicious, tagging. social bookmarking, microblogging, blogging, twitter, alice in wonderland, digital native, digital immigrant, digital voyer, digital refugee, podcast, rss reader, feed, aggregate. Care to leave a comment? Thanks! Thiago Eduardo - thiagoedu@gmail.com (presentation made for a Braz-Tesol one day seminar in Brasilia, Brazil on May 30th, 2008)