1. Product Creation
2. Building Your List (new subscribers and learning to convert to your buyers list)
3. Recruiting Affiliates
That's your business.
Of course this isn't the only business model online but I think its a great idea to be able to summarize your entire business into two or three words.
When you wake up and you're wondering what to do... you say "I'm going to release a product, work on my list or recruit affiliates".
Or if you're affiliate you're main focus might be "Building websites, driving traffic and improving conversions".
What you do exactly doesn't matter... but everything you do should contribute to one of your 'words'.
Know who you are and what your business revolves around.
Works for me