If you were to ask the question, "Which keyword selection tool do you use?" to any internet marketer or search engine optimization expert, there would be a vast amount of differenting answers. The reason for all these differences answers could probably be explained due to a combination of the different methods of people use in going about gathering their market intelligence, and the huge volume of keyword tools that are now available in the market.
The majority of people when they first get into Internet marketing will gravitate towards using the free Google keyword tools. These keyword tools are indeed the first thing that I use in any initial keyword or search engine optimization research, but for me and no doubt many other members of the Internet marketing community, they make up only a part of an overall market analysis.
So as well as the Google keyword tools, I use a few other free keyword tools and spend a lot of time brainstorming my own ideas on any new niche that I may be looking at entering. Once I have determined that a market looks as if it is worth pursuing, I will then use the paid versions of keyword tools that I have at my disposal. These paid keyword tools then enable me to quickly and easily build out a pay per click campaign to test the marketability.
Again, probably like a lot of Internet marketers, I have purchased a number of keyword tools over the years. Most have not lived up to their hype and are now gathering dust on my hard drive. In conclusion, as to which keyword selection tool I use the most, my answer is Keyword Rockstar. I have only had it for a month and simply can not believe how powerful it is. To call it simply a keyword tool does not do it justice.
The software does your research in a number of different fields at your disposal and using advanced filtering, you can have a targeted list ready for a pay per click campaign in seconds. Keyword Rockstar can then auto generate from this list, all your adverts that are necessary for the search, content and placement networks, all upload able to AdWords Editor.
The best feature, it can even auto generate flash banners in all sizes allowed by Google and upload these as well. My answer as to wherever there could ever be a correct keyword selection tool might not be the right one for many, but it sure is for me.