@eoity the aim was never to harvest email addresses :) I'm doing this to spread things I learn everyday and what others have learnt.
These tips should be great, thanks!
But if this is just to spread knowledge, why not just doing the spreading through twitter, tumblr or a blog? :)
Blog is great but there's something to be said about having a small email tip in the inbox every morning. But I'm hearing all the feedback as it comes. Maybe at some point it might make sense for it to be a blog then I can switch.