Note on the keywords tag... by the HTML spec it can only contain... if memory serves me... 1024 chars. I've believed Google still indexes keywords just not for ranking... big ole red flag...
if too big, too many repeats (it was 3 repeats of any word back in the day). You also don't want the repeated words too close together. Should alsoi note that on Mike Grehan's newsletter he did an interview with a Yahoo! engineer who said they use it, especially for slang, alternate meanings possibly mispellings, multiple spellings etc. That I've tested and it does look to be true but... nothing is written in stone.

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