tedster - 3:26 am on Aug 22, 2011 (gmt 0)
Many times in past years, various Google spokespeople have confirmed that Google's algorithm doesn't look at any keyword meta tag (although they do reserve the right to use it if they find a useful signal there.)
But right now there's a thread in our Bing Forum that anyone who has keyword tags on their pages should probably notice. The poster is "bingdude" - Duane Forrester who is Senior Product Manager of Bing's Webmaster Outreach Program.
I'll make this statement: meta keywords is a signal. One of roughly a thousand we analyze.
Getting it right is a nice perk for us, but won't rock your world. Abusing meta keywords can hurt you.
SEO for Bing - a discussion with Bing's Duane Forrester [webmasterworld.com]