The upheaval after Iran's election has proved that the Internet has evolved from being the handiest purveyor of smut and knock-off Jimmy Choos to an instrument that can allow people in Louisville to influence events in Tehran. This two-part series will focus on what you can do. Read Part 1 to learn how to use Twitter to help ensure Iran has a fair election. Part 2, Media pressure and circumventing Iran's Internet firewall Media pressure