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Rheingold has been building web apps since 1996 and has spent the last 5 years figuring out how to actually make a business out of doing it. In 2001 he started the web services company OneMatchFire.com and in 2004 started Dogster.com and Catster.com which have become the definitive online communities for pet lovers. What once started as night and weekend projects have turned into a 3 year old, 14 person, profitable mini-network of passion-centric communities. Since then Rheingold has spoken about DIY web development, nurturing community, and making big things happen on micro-budgets.