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DON'T do Keyword Research with intention to produce Search Engine spam. |
Keywords analysis (of any kind including research, density, suggestion, variation, volume or geo-targeting report etc.) is useful mainly for PPC (pay-per X) programs and campaigns, NOT for Search engine optimization.
To illustrate: Google's very own Keyword tool is direct part of AdWords (which is advertising platform), NOT part of Webmaster tools. Think why.
You can easily find keywords, their variations and search volume (here or elsewhere, though here its free + we don't try to sell you anything, so we can be completely honest!) but remember that keyword worths nothing without (quality) content behind, and quality content is far from keyword stuffed one! Keywords and phrases that trigger more searches per month therefore produce more traffic (but they should be used to target/trigger ADS and generate more clicks to those ADS, not to build websites or pages!)
For web sites, you should just focus on content / visitors. Keywords will follow: all you have to use is web log analyzer (such as Webalizer / Awstats or Google Analytics) and it'll report key phrases and keywords people used to find your web site. With such reports you will soon realize that biggest part of traffic often comes from keywords and phrases that are not in the top at all (by search volume) and that is something that no "generator", mass-this-or-that, "bulk optimization" or any similarly named keyword calculation / measurement software or tool can ever substitute or tell you in advance. So, instead of expecting bot to do your job, rely on common sense, and: Log / analyze, see what works best for you in practice, and never search for keyword variations just to use them as primary content, which is both unethical + pointless, cause engine's algorithm is sophisticated enough to determine fake keyword density/abuse. (and was, for the last decade!)
