I think that currently there is no better tool than Google Adwords that allows you with such precision and such a short time can give information that people are looking for and which terms require more of them. Other tools can also be used as much as possible, but the Adwords are a world unto itself. Just create targeted campaigns and ad groups, and the next day or a few days to know exactly what is in demand and thus on what to do.
If you have a website and plan to raise attendance, a pay Adwords only see what people click the most. If a particular ad group made good traffic, and you have on your website content of this type, what does this tell you? You have to specifically create. You can also test traženost targeted keywords and everything you need.
