Affiliate marketing is more than just playing with your landing pages and finding the right offers. Sure. Finding products that people can actually buy and get value from is a part of the process. But you want to make sure people can get to your landing pages and get connected with what you are trying to convey. That’s why you need to invest in a premium keyword research tool to help you with your affiliate campaigns.
You can always get away with using free keyword tools when you are starting, but if you want to expand your business, you are going to need the right tools. With that in mind, here are top 5 best affiliate keyword tools that can help you take your campaign to the next level:

Keyword Country: The ultimate tool for affiliate marketers that often goes unnoticed. It’s used by both Adwords and Adsense experts. Great way to put the right foot forward in a new niche. It can help you discover new markets too.

Keyword Spy: one of the most powerful keyword spying tools on the market. Whether you are interested in spying on your competitors or just want to figure out what markets can be lucrative for you to enter, Keyword Spy comes handy.

SpyFu: another one of those top spying tools that helps you develop long keyword lists, spy on your competitors, and find out new markets to enter to. You can use Kombat feature to compare your campaigns against your competitors.

Keyword Discovery: has been one of the best keyword research tools around for years. The data that you can dig up by using this service can help you plan those affiliate projects more effectively.

WordTracker: the tool has been around for years and has been used by most affiliate marketers. Since everybody seems to be using this tool, I don’t put too much emphasis on it. But knowing how to use this tool can give you an edge over most other affiliates.
What’s your favorite affiliate keyword research tool?