So the first thing you need to do once you have joined an email service is design some sign up forms.

This is quite easy to do and your email autoresponder should give you some templates to play around with.

You can then insert sign up forms into your side bar, into your actual posts... wherever you would like them to be.

And here is a training video on how to add an aWeber form to your sidebar:

https://my.wealthyaffiliate.com/training/how-to-ad...

And here is a training video on how to add an aWeber Popup form to your website:

https://my.wealthyaffiliate.com/training/how-to-ad...

You can also add them to Facebook with an application so your Facebook fans can sign up without leaving Facebook.