[Zemfik]

I just read an article stating that commas should not be used for the Keyword meta. I have plenty with many keywords pertinent to my site.If you do use them make sure that they contain keywords aligned with the content of your page. If they don't this can cause problems.

[shawnhenry]

Each keyword is an individual token separated by commas. So that's that. You want to separate these things with commas and not just put one long string of text. The more keywords that are put in and the more they're repeated, the much larger the chance our spam team is going to want to check out that page. It doesn't mean that page is going to get any specific judgement. But it is very much a red flag. For best practice you just need to remember it's for matching - not ranking. Repeating the same word 20 times is only going to raise a red flag... It doesn't increase your likelihood of showing up on any given set of search results. It's just a risk with no benefit.

[kevenlee]

Originally Posted by Zemfik

I just read an article stating that commas should not be used for the Keyword meta. I have plenty with many keywords pertinent to my site.If you do use them make sure that they contain keywords aligned with the content of your page. If they don't this can cause problems.

Each keyword is different and should be seprated by the comma when writing to the keyword meta in a webpage. One more thing now Google not consider meta keywords as a ranking factor so if don't use them then there is no harm.
But other search engines like Bing and Yahoo still use them.