My own approach to keyword researching a new blogging niche is quite simple - I just take the same keyword research process I use for individual blog posts and expand it. (robpowellbizblog.com)
All opinions on individual blog posts are those of the bloggers. (familyfoodie.com)
We went back through all of our training / reference material over the years and posted it in individual blog posts using the categories to help agents find what they are looking for. (realestateideashed.com)