Research shows that more than 65% of marketers around the world rated email marketing as best online marketing method. Why is this? You can use it to attract new customers, keep existing ones, up-sell, cross-sell and cut costs. Email marketing, when done correctly, will generate results and success for our online business ideas.If you are trying to develop an online business, you will want that business to generate you some income. If there is not any income, it is little more than a hobby. For this article, we will assume that you know what you want to sell online. When you have your product or service, how can you use email marketing to grow your internet business?1. Build A Customer List.If you have spent any amount of time looking into how online businesses become successful then you have probably heard the saying, “the money is in the list.” This is the list of potential and actual customers that you have on your email database list. It is so important to build a list, that everything about email marketing revolves around this tip.2. Marketing Forever.Sending traffic to your website takes a lot of resources. It’s necessary, but email marketing makes it simple. Once people are at your website, you encourage them to provide their email address to you, in exchange for something of value like a free report, free sample or a copy of your newsletter. Once they have provided you with their email address it does not really matter if they never come back to your website because you can now remain in contact with them via email.3. Always Provide Value.Email marketing is about developing a relationship with the people on your list and if you do not send emails on a regular basis they will forget about you. There is a presumption that if you send too many emails, it will irritate your recipients. It will only irritate them if you send them rubbish, so every email should provide value. If you would not send the email to your best friend, then don’t send it to your list.4. use Compelling Subject Lines.Your subject line is like the headline of an advertisement. This is what people will see in their email inbox. If they don’t like it and if it doesn’t make them want to read what the email is about they will ignore or delete it. One golden rule is to never send an email without a subject line. If you do, it will probably get deleted as soon as it lands in the recipient’s inbox.5. Create A Relationship.Your email marketing needs to create a relationship with the people on your list so that start to like and trust you. If you continually blast out hard-sell messages it will turn people off. Let your subscribers know that you are a real person, just like they are. By continually providing value and understanding their wants and needs you will build a relationship with the people on your list and they will be more inclined to buy from you again and again.