Information Ecologies

I would consider Wikitravel to be an information ecology. It is a community of people who are sharing their knowledge and opinions of places in the world that they, hopefully, know very well. People work together to produce a webpage that portrays their town, city, or landmark in a positive and enticing way. I do not really think I belong to many information ecologies. I do belong to my local library. I also am signed up for e-mail lists which give me specific information about certain stores and products.