Have you ever heard the phrase “keep your friends close, but your enemies closer?” The mentality behind it is pretty simple; you can trust your friends, so you only need to pay them moderate attention. You can’t trust your enemies, so you need to watch them like a hawk.
The idea carries forward in the world of business. Learning what you can about how your competitors operate will help you get an edge over them when push comes to shove. In SEO, particularly, you want a great deal of competitive knowledge. What are they doing, is it working, and can you do it better? Here are ten things you can learn, and tools to find out.