Twitter and the realtime web are impacting news and communities. Loic Le Meur is an entrepreneur and blogger who has founded 5 companies including Seesmic, one of the most popular Twitter applications. The document discusses how conversational media like Twitter allow for both conversation and group communication, becoming a carrier for other media and information. It notes that professional media has become a minority source of information, and highlights examples like the Chinese earthquake and Fort Hood shooting where news came from Twitter. It encourages people to build communities and brands online through regular microblogging on Twitter and participating in other communities.