Eric Ries talks about this at length, for consumer internet companies. Check out the archives at http://startuplessonslearned.blogspot.com/ http://startuplesso

Eric Ries talks about this at length, for consumer internet companies. Check out the archives at http://startuplessonslearned.blogspot.com/ http://startuplessonslearned.blogspot.com/ In short: you can release a landing page before building, with a signup form for interested peeps, and you can release early and often.