Are your ads powered by all the right search engines? Check out this post, which recommends that marketers focus on just the three biggies -- Google, Yahoo and MSN.
The writer argues that
you're wasting your money if you're doing anything more than that. But the post fails to mention that search is becoming more and more specialized, with more players in vertical niches. So maybe these
three will not always be the kings they are now.
Read the whole story at Search Engine Marketing »