What would the most effective way to map the entire Internet in a short amount of time? Distribute the scan out as far as you can and then aggregate the results in order to farm the processing, bandwidth and network reach of others. One researcher took the time to craft a script designed to access insecure embedded device across the Internet using default credentials. Then, leveraging all of those devices he launched nmap scans of the entire IPv4 address space to paint a picture of the 2012 Internet. Who knows, there's a good chance your Internet modem or Internet enabled device (TV, DVR, etc.) participated in the scan.