Type: Posts; User: gaurabk
If keyword is placed in url specially at first, it will boost your ranking. Keyword in url is also one of the onpage factor.
SEO is process of gaining natural traffic through ranking higher in serp for particular keyword phrase or keyword.
SMO is process of endrossing the business through social media.
If you are using dream weaver, In css tab, in that you can change the text of navigation bar for all pages at one place.