SEM Tops Online Advertising Spending

According to an eMarketer report, Search Engine Marketing (SEM) is at the top of online advertising spending.

The Search Engine Marketing report tracks the trends that are driving the massive but still-growing search advertising market.

eMarketer estimates that Google raked in 75% of US paid search advertising in 2007, up from 60% in 2006. Number two, Yahoo!, collected a mere 9% share, while everyone else split 16% of the pie.

With over $8.6 billion going to search engine advertising in 2007, that 16% stake equals nearly $1.4 billion. And with search spending nearly doubling to almost $16.6 billion in 2011, even a small slice represents significant revenue.