The big other search engine people recommend is, of course, Bing. Bing and Yahoo have something of an alliance, with Yahoo taking their data primarily from the Bing index, so appealing to either one is the same as appealing to both. SEO for Bing is a little different than it is for Google, though. Exact match keywords tend to have greater weight, for one thing. Bing also has a bit more of an emphasis on links from edu and gov sites.

Hey Julia, thanks so much for the comment. I just saw the idea you were talking about, that is awesome. I think you are right cause although it seems a bit inconvenient, I personally wrote down a few URL like that in my cell phone or notebook to check it out when I am back at the computer. Wow, this is something I need to think about. Also, how about those big billboards?
The term “organic traffic” is used for referring to the visitors that land on your website as a result of unpaid (“organic”) search results. Organic traffic is the opposite of paid traffic, which defines the visits generated by paid ads. Visitors who are considered organic find your website after using a search engine like Google or Bing, so they are not “referred” by any other website.