Advertising: Uncertainty on Wall Street, Big Deals on Madison Avenue

Madison Avenue used to be the hub for the world's big ad agencies.

Facebook has created a Web page where agencies can display their work and has invited an agency to design a space for ads on the Facebook Web page.

The 451 Group: Inorganic Growth submits: By Brenon DalyMaybe it was just working through the backlog of deals from the holiday break, but M&A activity has started strongly in 2010.We previously noted that a number of big tech buyers have already announced deals this year.

Facebook served $4.3 billion worth of ads last year, a staggering sum. It's forecast to sell about $5.5 billion in ads in 2013, too.

Mobile Guru submits: In 2010 the number of buyout deals was low in the biotech area due to conservation of cash coupled with some very large drug companies finishing up their mergers. 2011 has the promises of a major acquisition year with certain companies hoarding large amounts cash, such as Merck (