Search engine optimization (SEO) is a process of optimizing a website so that it appears higher in search engine results pages (SERPs). The main search engines are Google, Bing, Yahoo! and Ask.
com. SEO can also include increasing traffic to a website from online sources such as blogs, article submission sites and social networks.
A blog is an online journal or diary that entries are typically published on a regular basis. Blogs can be used to share information, promote products or services, and build an audience.