Starting an Online Business

I'm interested in starting a small online business to generate some additional income. I pretty much have no idea of what I want to sell at this point, but here are some thoughts and links:

• How Creating an Online Business Works
  
• Use Google's Merchant software
  
• Buy a server for web-hosing
  
• Register a domain name and several similar names
  
• Create a list of all possible product ideas, it's better to have a niche than to try and sell a broad range of products (e.g., Spatulas vs. Kitchenware).