Merrill Lynch lowered their ad spending projections mid year yesterday, following Universal McCann’s Robert Coen doing the same a day earlier.  
While ad spending is still expected to rise, the rise may be less significant than previously thought.  
Merrill Lynch decreased its projections to 5.1 percent growth after forecasting that U.S. ad spending would increase [...]

While Google agreed to a similar settlement earlier this year, the details varied considerably to what Google agreed to provide.  Google agreed to give out search credits, while Yahoo was willing to give search credits or cash vouchers.
There is some disagreement as to what is considered click fraud.  Some say any clicks made by people [...]

Take a look at this ad for a martial arts studio. 
They’ve studied the surrounding area and created an ad that fits well with it.  Now, take that idea to online advertising.
You have to come up with an ad that:

works with many sites
looks custom for the site it is on
evokes emotion (laughter, tears, excitement)
is memorable

Is [...]