This particular keyword has a totally different keyword that means the same thing and that domain for the second keyword is available and it actually has just as good if not better search results/stats than the first keyword for my current site.
My question is, should I add additional content to my current site with the other keyword? Or should I build a second site that is built around this other keyword? All the information from the current site would be the same on the new site, obviously I would change up the content to match this other keyword. But just wondering if building a new site would hurt my revenue earning abilities or increase it.