Question about metatags?

I have a ? asked:


I recently posted a website thru MS Office Live. Under the Properties tab a “search engine optimization” window pops up. Two text boxes open up. One is marked “keyword metatags” the other “description metatags”.

What is the difference between these two? What words should I be looking for? Synonyms for my service? Zip codes? Cities? Which words would go in which box?

I operate a service company.

Social Media Marketing