I'm no HTML expert either, but I have found that meta tags do not help much on getting googled (I base this on my website). It seems titles and text are better for getting on a search engine. For example; if you type the phrase 'geologic faces' into google my website comes up first, as the title of my website is Gelogic faces of Southern California.
I have added meta tags like San DIego Geology, but yet a google on this phrase,you will not find my website.
Just thought I would share that