There is no set number since the search engines don't use that meta tag to rank sites. Put as many as you feel you need and put them in order of importance.

I limit myself to 10, don't put to much effort here, you can spend your time elsewhere and get more trafic. Good content is the key.

I think you can find the top 10-15, but I agree with stymiee, definitly put them in order of importance.

But it definitly is going to take more than keywords. Dont forget other important site elements when building your site!

IMO 8-10 keywords are fine. It should be a good combination of the important, less and more competitive keywords.You can't take all 10 keywords which are highly competitive.

meta keywords can be limit to 10 - 12 keywords ther must not be more repeation of same phrase in one certain line then it will good but most of search egnine are ignoring meta tag they onely take description's

well, I don't consider the "keyword" tag in META tags placement.

But yes, description tag would be useful and even shows it in website rankings.

Still, if you want to use the keyword tag; then place your most targeted keywords used for the web page.

Meta Keywords really have no bearing on rankings nowadays. That's because people used to use them so often to spam the search engines that the algorithm no longer focuses on keywords.

That said, it doesn't hurt to have a few, but don't exceed about 170 characters or so.

While meta tags really don't count towards much, they are so simple and easy enough to implement that there really is no reason not to do so. Spend the five minutes. The search engines are really cracking down on keyword stuffing (both in page content and meta tags) and future algorithms might be able to correctly (gasp!) differentiate appropriate keywords from black hat ones, and more weight might be put on them in the future. Likely? No. But for something that takes no more than 5 minutes, you might as well.

Yes i agree with CSCgal just spare five minutes on meta keywords and try use them also



regards
seomaster