This document discusses various types of mashups and collaborative internet projects, including:
1) Aggregating online content from sites like Flickr, Twitter, and YouTube.
2) Visualizing and discovering trends in data using tools that analyze content from sites like Google Flu Trends.
3) Alternative ways of navigating online information using tag clouds or color-coded search results.
4) Creating narratives or stories using data from multiple online sources.
5) Artistic and experimental projects that combine disparate online information in creative ways.