On the other topic: there are services out there that will give you lists of key words on a given subject that they feel will work best for finding people searching your posts. These key words have common thread, they are single, simple words. They are not phrases or catch phrases. So, keep it simple blogger! Also, you can accomplish much the same thing (without a list of other suggested terms showing up) but "Googling" a word for yourself and seeing how many hits it gets. The higher the hits, the better the word. It's simple, but it works, and sticks with the "keep it simple" maxim.
Happy blogging and commenting!