My favorites: zemanta.com & postrank.com
These 2 are helping me move my blogs to the forefront of their niches.
How to use this guide...
Most ebusinesses start out on a shoestring and owners have a big learning curve ahead. You can usually get your business to profitability using mainly easy-to-use free or low cost products. Then you get to a point where you have to spend more for professional tools to get to the next level. This guide is to help you along the most economical path to major profits.
!! Indicates a must-have. These are tools that buy you a lot for little or no money
Entry level - These are easy to use tools at little or no cost.
Pro level - These tools cost money ... possibly big money. They are also usually complex to use. They can take you to new heights and are used by pros.
[brackets] - indicate price range