The opportunity-starved organization is likely to start making major investments again -- just in a different way.

Warren Buffett's Berkshire Hathaway saw its stockpile of cash continue to swell, amid questions about what he plans to do with all that money. But in his annual letter to the conglomerate's shareholders, he reaffirmed his desire to invest in businesses, rather than hold onto cash.

(AP) — In his annual letter to shareholders Saturday, Warren Buffett celebrated the successes of Berkshire ... businesses that include brands like Dairy Queen and See's Candy.