Does a startup always need a new idea 
ericwaller: Definitely not. Google is the canonical example of a startup entering a crowded market and just doing it better.If you're from India, you're probably familiar with http://www.smsgupshup.com/. I don't know too much about them, but my understanding is that they're very similar to twitter, but managed to grab the Indian market by catering specifically to those users' needs. I think I remember reading that sms was a much bigger focus for them because of the availability of net access in India. Sometimes doing it better means doing it better for a specific subset of customers.