2. Subscribe to your newsletter for personal messages
This way, you can filter people that are interested in your business from people who just want your blog content.
I recommend only giving your readers the one option, and giving that option everywhere for convenience. I have forms in my feature box, sidebar, post footer, and more so that I can gain the maximum amount of subscriptions.
I've linked to sales pages both in my newsletter and on my blog and more than 3 times the customers were generated from email than my blog.
You could ask many marketers and they will tell you the same thing.
If you're doing this for fun and not income, then Feedburner will work fine lol
Hopefully this helps! :)