Hi Stefani,
I noticed on your forms that you only ask for their email address.
Maybe you should also ask for their first name so you can
personalize your follow up messages. People like to be called by
their name rather than just being said hello to.
Ex: Stefani, check out my latest tips (Subject)
Body: Hi Stefani,
Bla, bla, bla, bla. I'm sure you know what I mean.
Also, instead of telling your visitors/potential subscribers
that they will be also receiving "ebooks", tell them which
ones and show them by having the picture of the ebooks
on your site right above the form.
Hope this helps
Jason Dinner