What I recommend that you do is: choose any, some, or all of these traffic sources that you wish. And you set up a tracking page for every one of these. For example, if you write an article that goes to FindArticles, you send them to a unique squeeze page, that has a unique web form code on it, so you know exactly how many subscribers are being generated every single month from those articles.
You know exactly how many subscribers are generated every month from guest blogging. You know exactly how many subscribers are generated from LinkedIn, from Facebook, from your affiliate program, from anywhere else. Then you'll combine that with a time Asia Email List sheet. Call it a traffic time sheet. Every time you sit down to work on traffic, you log into your traffic time sheet. You can do this in an Excel spreadsheet. You can do this with pencil and paper. Here's how to use it: If you work on articles for 15 minutes you write down "Articles - 15 minutes."
Let's say, for example, that it's April, so you have an April spreadsheet. And it says, "Articles - 15 minutes. LinkedIn - 30 minutes." Then you spend another 20 minutes in Articles, so you need to update Articles to 35 minutes. At the end of the month you'll be able to see at a glance that you spent 200 minutes on articles. You spent 100 minutes on guest blogging. You spent 75 minutes in LinkedIn. You spent 95 minutes in Facebook. So on, and so on. Next you're going to look at how many subscribers you generated from each one of those traffic sources.