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Seriously...no cost. We kept getting requests about providing certain parts of the tool a la carte, and basically decided 'to hell with it. Let's just open up the entire toolset and education for free, so that everyone can use what they want, when they want.' So we took a bold step and did it - the only caveat was how do we make any money to keep the site up and running. Well, we decided to just rely solely on advertising for revenue. Don't worry - we're not going to go crazy with ads - just your standard content related advertising, so hopefully there will be something that interests you.

Besides, in this market, every edge counts. So use what you want, when you want, as often as you want. It's good stuff and really does give you an edge.