Sanford Weill was once the king of making big banks bigger. Back in 1998, he combined Travelers, the insurance company, with Citibank to create Citigroup. But now, Weill wants to break up big banks. Facebook will post its first earnings after its IPO today, but the company has had a rocky road since it started selling shares and there are still big questions about its future. And why Goodyear is working on a new kind of tire: One made partially from soybeans.

A report from the Congressional Budget office says President Obama’s health care law could save the federal government $84 billion over the next decade. That savings is mostly because of the Supreme Court ruling last month — and a part of the law it ruled out. Caterpillar, the world’s largest maker of construction and mining equipment, releases its quarterly earnings today. And reports issued by the U.S. Department of Agriculture don’t usually create ripples beyond a small pond of farmers and investors, but today, though the USDA releases a much-anticipated briefing: the monthly food price forecast.

The 2012 Olympic Games begin in London on Friday, but already a venerable Olympic sport is underway: The Brits are arguing about the costs and benefits of the event, which set them back at least $15 billion so far. Speaking of $15 billion, China’s government-controlled oil company, CNOOC, is snapping up Nexen of Canada for just as much. Nexen is big in the oil sands of Alberta and the Gulf of Mexico. And as this summer’s drought shows no signs of letting up, many farmers are worried about the future of their crops — but in other states, farmers see nothing but green.

There seems to be a major case of the “Mondays” going on in Europe, as Spain struggles with a new round of troubles. As the 19th International AIDS Conference gets underway in Washington, D.C., it is clear that we’ve reached a critical juncture in the AIDS fight. And Teach for America, the program that recruits recent college grads to work in underperforming schools, is making a push into the political arena. Former TFA grads already have won seats in state houses and on local school boards.

Two years after the Dodd-Frank Law was enacted, many in the banking sector are still grumbling about the change in regulation. How does that compare to when the rules change in another American pastime: Baseball? Schlumberger and Baker Hughes help big oil drill. But their business is softening as some drillers pull back due to the economic slowdown.

It appears more of the world’s largest banks are getting roped into allegations of fraud. Four big European banks have joined Barclays in the not-so-prestigious club of financial institutions being investigated for rigging a benchmark lending rate called LIBOR. Of course, this banking scandal comes on the heels of the monster JP Morgan trade-gone-bad, which has cost the bank billions of dollars. What can be done to keep these problems from happening? And more than a dozen top-tier universities are signing on to a plan that will make college more affordable — by offering some of their courses online for free.

There’s a growing sense among economists that the housing market has finally hit bottom, as home prices and home sales have been stabilizing in many places. There’s a new report out today that’s got one explanation for why companies aren’t hiring the people they want to hire: A visa program to bring in the best and brightest from around the world is capped. And overseas, India has lost its ranking as the country with the most upbeat consumers, according to Nielsen. But it wasn’t long ago that many thought India’s growth rates could surpass those of its long-time rival, China.

Yahoo has its fifth CEO in five years. This time around, the company has selected a woman named Marissa Mayer, who has spent the last 13 years as an executive at Google. The ailing tech company reports earnings today, as does another big tech company, Intel. And the Hue-Man bookstore, the largest African-American bookstore in the country, will be close its doors at the end of this month, citing rising rents and a changing industry as primary factors.

Grocery stores and merchants of all kinds will be sorting through the fine print this morning following a major credit card settlement that was announced late Friday. Visa, Mastercard and some big banks agreed to pay $6.6 billion to end a fight over fees they charge retailers. Microsoft has called a mystery news conference today. And the speculation is that the company will unveil new features for its software suite Office 15. And under the assumption that the Affordable Care Act will go into full effect, Northern Arizona’s community health centers are anticipating a jump in demand.