Question: What are Meta Keywords?
The meta keywords field is no longer considered an integral part of optimizing your site for search. However, that doesn't mean that it's gone completely. Using this field to sprinkle in a couple of your most targeted keywords and phrases is definitely not as important as it used to be to search engines, but every little bit helps when optimizing your site.
Answer: The meta keywords tag allows you to provide additional text for crawler-based search engines to index along with the rest of what you've written on your site.
One way to use the meta keywords tag is to emphasize a particular word or phrase in the main body of your text. For example, if you own a website all about plaid pants, and want to reinforce the word "tartan", then what you would want to do is have that word sprinkled liberally throughout your web copy, and also inserted into your Meta keywords.
Another option is to insert unusual words or synonyms into your Meta keywords tags that you don't actually have on the page itself. For instance, if you are a Star Wars fan and have a website about collectible Jawas, a good idea would be to put George Lucas's name in your keyword Meta tags. This would increase the odds of someone stumbling onto your page that only was looking for George Lucas; however, an even better way to increase those odds would be to include his name throughout your copy as well. Learn more about search engine optimization.