The world is turning to the Internet for everything. It has become the first place anyone looks for information because it saves times and helps centralize info. For example, rather than having to go drive around neighborhoods to find a few houses to look at you can search for real estate online and find homes with features that you want.

Print out a list and then go see those when you have the time set aside.

The way SEO comes into play is it will help you show up higher on the search engines when potential customers do a search online. For example "condos for sale, seattle, wa" if you have listings in that city, you would want your website to show up on the first page so that a potential buyer can look at your property, thus a possible sale for you.

Hope that helps!