First, lets assume you have already set up a list using Aweber. You have your first message and hopefully bonus already loaded. You now want to create your opt-in form to be placed on your website or blog. (If you are not using Aweber but another good responder service, the process should be similar)
Select 'Web Forms' and either select an existing form or 'Create Web Form' and you are taken to a screen like this:-
Note: At this point leave the 'Thank You Page URL' as the default. (We will change this is the next section.)
You will then see the Design Form page:-
Select 'Save'.
You will then see the Web Forms page:-
Click on the 'Get HTML' link.
You will then see the following pop-up:-
You can then select either the Javascript Snippet or the Raw HTML version of the code.
Cut and paste the code and place it on your website or blog where you want your opt-in form to appear.
All pretty straight forward...