Acternaweb - 3:57 pm on Jan 19, 2001 (gmt 0)

I am currently in a SEO course and people were talking about Theme Engine's. My understanding is they are "sub-sites" of a compelte site. For example, we are a telecom test company, so we would have a segment site for Fiber Optics, one for Wireless with similar look, but what is different?

Thanks for your help