Within the written essay entitled growth,subsection "Rate" Mr.Graham mentions "The best thing to measure the growth rate of is revenue." Which is straight forward but,read on.. My startup: After obtaining 20-30 paying users & within 2 weeks without a dime spent on marketing I'm distributing the actual product to my users soon. My question is besides scaling through giving users a great product+ great experience,what else is suggested? Is that when I should start contacting bloggers? Those 20-30 users can spread to 100 users,but at one point it will stop. How would you suggest continuing user acquisition while gaining user feedback that scales rapidly?