One tweet from "Dupree" appeared to be coming from inside one of the hotels: "Mumbai terrorists are asking hotel reception for rooms of American citizens and holding them hostage on one floor." A group of Mumbai-based bloggers turned their Metroblog into a news wire service, while the blog MumbaiHelp offered to help users get through to their family and friends in the city, or to get information about them, and has had a number of successes. Flickr also proved a useful source of haunting images chronicling the aftermath of the attacks. Journalist Vinukumar Ranganathan's stream of photos were published by CNN and other major broadcasters. iReport.com: Are you there? Share your photos, videos and stories A Google Map showing the key locations and buildings with links to news stories and eyewitness accounts, and CNN's iReporters flooded the site with their videos and images of the terror attacks.