I have been following Seth Godwin for a while – he posts frequently, and each post teaches me something new. Here is a video of him giving a speech on creating a nucleus and building around it – and identifying tribes and telling them a story – http://sethgodin.typepad.com/seths_blog/2008/12/the-seed-the-pi.html
What I learnt?
* You need to sell your service to the whole world. Identify a little group of people – and show them your service, tell them your story – they will spread the word for you – if they like it and your service is good.
* Everything starts small – as a seed, as a nucleus. Hold on tight to it – and start developing on it – working around it and slowly let it evolve. Much like the agile process that I follow – in many iterations – adapting and modifying according to the feedback and what the customer wants.