I know there are a few web devs in here, help me out please...
SEO needs to be done on a site I made (powered by a mostly-custom CMS I wrote). I didn't add support for meta keywords, because my research indicates that using them to boost site rankings is about as effective as using flame vinyls and Type-R stickers to make a car go faster (I've gathered some links to back this up). Content optimization and index pages seem to be the best methods nowadays. The CMS also generates a shiny new XML sitemap.
Today the guy at the SEO company sends an email to me and my boss complaining about the lack of this functionality that's "present in all modern CMS systems" (not that he's wrong on that point, but the tone is pissy).
He doesn't know if I built the CMS, but the real point is that it's odd that he wants to use meta keywords in 2009.
I could add support for meta keywords in just a few minutes and keep the process moving along for the sake of keeping it off my desk, but I'm concerned that we're spending money on SEO using methods that are of questionable effect at best. There isn't some long line of bureaucracy forcing us to continue down this route - I could make an argument to go with a different company if we need to.
Before I raise a stink (while my boss is out of town at that) is there any good case for using meta tags these days? I'm no SEO expert but I've done a fair bit of research, and it seems that they're basically being phased out of use.

