I am confused whether you should repeat keywords with different phrases. For example, I want my website to come up for Unblock MySpace, Unblock Facebook, and Unblock Websites on Google. So should my META Keywords be Unblock Facebook,Unblock MySpace,Unblock Websites? Is the repetition of 'Unblock' bad? Also, are the META Keywords case sensitive?
Google doesn't use the keyword metatag. put 3 or 4 of your main keywords in to 'mop up' some of the minor search engines and forget about it. It's the least important element of SEO.
There is no prblem if you keep repeat unblock facebook unblock website for 3 or 4 times. meta keywords are not case sensitive
As others have said, do not worry about the keyword meta tag. This tag is no longer important, especially to Google. Spend more time on building quality backlinks instead. You won't get rankings just by putting the right keywords in the keyword meta tag.
Google does not use the Meta Keyword for anything, so it doesn't matter. But what you have shown would be ok.
Meta Keyword never worth for you. Put your keywords on META Description and it would be better if you repeat the keyword at 3 times in a Description. Don't forget to put your keywords on page title
The search engines disregards the keyword meta tag, and determine a page’s relevancy score based solely upon that page’s content. Probably because of all the abuse that the meta tags have sustained over the years.