GroupM predicts global web ad spend will hit around $98 billion in 2012.
CP+G, AKQA, Razorfish, MRM, Brunner, and other agencies reveal spending trends.
Search and display investments both fell about 6 percent.
Borrell forecasts online and other media spending for the 2012 election.
For every dollar made in digital, newspapers are losing $7 in print ads, according to a Pew study
Democrats and Obama's campaign outspent Republicans 2 to 1.
But Google will soon catch up in the display category, eMarketer says.
Super PACs spent $5.86 million on web ads to support or oppose 2012 presidential candidates.
Digital marketing dollars to grow 23.3 percent, eMarketer says, while print spending falls.
Marin Software reported 10 percent of search ad clicks in Q4 2011 came from mobile and tablet devices.
Insurance, legal, and medical services firms slashed their search spend this year, researcher says.
Publishers no longer face the disappearance of wireless telco ad budgets.
Global digital ad investment will reach $100 billion by 2012, GroupM predicts.
Borrell Associates finds more than half of small businesses will increase digital spending this year.