But there is a lot more flexibility abroad, particularly in emerging markets in Asia and Latin America. There, consumers are looking for travel outlets that have the biggest inventories of rooms and air carriers, and experienced travel firms such as Priceline are well positioned to take advantage as a result. The firm's Agoda acquisition in 2007 gave the firm a huge instant share of the Asian travel market, for example. And more recent acquisitions, like the still-pending buyout of Kayak, should add some advantages for PCLN in the U.S., where a more content-driven travel site can still win some advantages with consumers. With rising sentiment hitting shares this week, we're betting on PCLN. Yahoo! Yahoo! ( YHOO ) is getting a lot of attention this week, after news hit that the firm was planning on purchasing social networking site Tumblr for $1.1 billion. The acquisition is a high-profile chess move for Yahoo!