High reach: When people join your email list (subscribe or “opt in”), you can reach them. If they just like your Facebook page, for example, it’s unlikely that they’d see many of your updates. Sure, not everyone opens your emails, but the numbers are heavily in favor of email marketing compared to other similar marketing tactics. I’d rather get 1,000 new email subscribers than 10,000 Twitter followers.
The terms ‘aim' and ‘objective' are often used interchangeably. However, they are not the same. Aims are an overarching end goal (and are usually specific). Objectives are steps along the road to that goal (and can be a bit more flexible). Aims are long-term outcomes, while objectives are short-term targets. Different objectives work towards different purposes. For example:
Marketing emails need to be personalized to the reader and filled with interesting graphics. Few people want to read emails that are addressed "Dear Sir/Madam" -- as opposed to their first or last name -- and even fewer people want to read an email that simply gives them a wall of text. Visuals help your recipients quickly understand what the point of the email is.
Then, send promotional emails through Auto Responder to your list. Your subscribers will click just 1 same link (main rotator URL), and the rotator will display all the different links to different visitors. Then you can monitor how many links being delivered inside the rotator and stop it when done (You can set it to stop automatically when clicks delivered).