I totally agree about content. I have been a long advocate of this because if there is nothing on the website, then there is no reason to return. E-mail campaigns are only good to have people return to the website. Having people, come once is a waste and will probably get people to unsubscribe to your e-mails. And once they unsubscribe it is nearly impossible to get them to subscribe again to be on your list.
MailChimp does not allow content that references the terms “make money at home”, ‘get rich quick’, or other similar terms. These keywords overlap keywords used by ISPs and SpamCop organizations to block content associated with spammers from those industries. This generates too much risk for us to encounter automated spam filter blocks for all of our customers.
Thank you for a detailed comparison of MailChimp and Aweber. I think it’s a nice idea to also have an in-house email software like this one http://easymail7.com in addition to the account with a remotely hosted email provider like MailChimp or Aweber. In case of a sudden account suspension by the ESP, you would not lose contacts, emails, autoresponders etc, and would be able to continue email marketing using the in-house email software.
Finally, you can optionally include “automations” with your broadcast. Automations are a simple way to automatically add or remove tags when your subscribers do certain actions, like open the email or click on specific links. Adding and removing tags are important when creating segments, or subscriber groups, and triggering automated email campaigns.