RIOT allows viewers to superimpose elements from Web sites of their choosing onto a single window. While Napier�s Feed combines maximum number crunching with minimum viewer input (e.g., the viewer can only choose from a predetermined selection of URLs), RIOT with a modicum of code stimulates viewers to engage in a truly collaborative performance. Unlike Napier�s collaborative tools that emphasize pure visual dazzle�Ripple and p-Soup, for example�RIOT emphasizes the social dynamics of the participants. Sometimes they trade URLs in a sympathetic dialogue; other times they compete for visual or thematic dominance. My favorite RIOT experience was trying to blot out pornography shots with baby pictures.