I have each link in my menu in a seperate cell that I used the title tag on for each keyword on each sub domain. Should I use the same keywords on the title tag for the link that is in that cell or is that too much too spammy? I don't want to over do it.
This type of on page stuff just does'nt matter that much anymore. "Make pages for users, not search engines." Google
Well, depending on the actual link, you can help users by putting a more descriptive title for the link. Don't you ever hover a short link to see what the title says about it?
It actually depends on the search engine you like to optimize for. For example Google does not put values for links with NOFOLLOW attribute. Whereas Yahoo does.