meta keywords for SEO

[Licker4U]

Originally Posted by Halfdeck

...Google definitely doesn't ignore the META keywords tag. Of course, that's different from saying that using the META keywords tag improves Google ranking.

I'm just starting to get into this stuff, but WTF did that mean? If Google doesn't ignore meta keyword tags, that means Google uses them for something, and the only thing Google does is rank web sites. So, if Google doesn't ignore them, but they don't improve ranking, what does Google do with them?