I want to introduce you to a very simple and useful tool my company have developed. This tool can be very helpful to anybody who is doing some PPC work and doesn't want to pay anything to get a decent amount of keywords. I'm talking about Keyword Shack's keyword combination tool. You can find it here: Combination tool What's really great about this tool is it does not use a database, instead, all you have to do is simply enter groups of of keywords and the tool will produce a list of long tail keywords generated from the keywords you entered. Many of you already do this kind of keyword groups Cartesian product manually, or using Excel. This tool on the other hand, offers an online method, quicker then manual labor, and trivial to use, without the need to use Spreadsheets, or code anything. The tool is web-based and free of charge (no registration required). I recommend you all to try it and bookmark it for later usage. Check it out: Combination tool
I'll explain with an example: Let's say you want to generate a keyword list around the keywords "car, auto, rental, hire, Honda, Mitsubishi". Split them by the following groups: Group one (product): car, auto. Group two (service): rental, hire. Group three (brand): Honda, Mitsubishi. What it does is generate all the possible combinations of one word from each group, so what it will generate is the following list: car rental Honda car rental Mitsubishi car hire Honda car hire Mitsubishi auto rental Honda auto rental Mitsubishi auto hire Honda auto hire Mitsubishi Code (markup): To use the tool, simply fill your first group under "New Group" and click "Add Group". Then fill in the next one, and so on. When all your groups are ready, click "Calculate Results" and you'll get the combined keyword list. If you want a group to be optional, so the final keyword list will also contain words without members of that group, add "[optional]" as the last line of the group. In the previous example, adding [optional] to the 3rd(brand) group will add "car rental" and "car hire" to the results list.