As part of its marketing products Google used to have a keyword analysis tool that enabled the look up of search statistics for keywords. It also recommend keywords based on a target URL. They’ve changed their tools since I used it last, but I assume something similar still exists.
The approach of discovering a keyword niche and targeting it is harder now that more people know about the technique.
The approach of discovering a keyword niche and targeting it is harder now that more people know about the technique.