CNET reports that Amazon has purchased Samsung's color e-ink company Liquavista, suggesting that it may plan to provide full color e-ink to its series of Kindle tablets. The financial terms of the deal were not disclosed. . Read More

TechCrunch reports that Twitter has acquired Lucky Sort, the Oregon-based data visualization startup with the navigation engine TopicWatch that helps find patterns in live data streams. The financial terms of the deal have not been disclosed. Read More

PCWorld reports that Yahoo has acquired Loki Studios, a mobile gaming company, bringing its total acquisitions this month to four: Loki, Astrid, GoPollGo and MileWise. Yahoo said in a Tweet: "We recently added 22 entrepreneurs to our growing mobile team." The Loki team, on their website said, "We are thrilled to be joining the exceptional folks at Yahoo! We believe fully in their commitment to creating outstanding mobile products." . Read More

Mashable reports that Twitter has purchased a small scalable computing startup called Ubalo. The terms of the deal were not disclosed. . Read More

Yahoo reports that IGAWorks, a leading mobile app marketing company, announced it has signed a deal with Kakao Inc., South Korea’s leading messaging app service creator, to get the new mobile ad solution, adPOPcorn, to mobile messaging app KakaoTalk. Read More

Reuters reports that Facebook Inc. is in advanced talks to purchase Israeli mobile satellite navigation start-up Waze, for somewhere between $800 million to $1 billion, according to reports by business daily Calcalist. . Read More

VentureBeat reports that Microsoft is offering to pay $1 billion to purchase Nook Media LLC, the tablet and digital media book joint venture with Barnes & Noble and other investors. Microsoft owns a share of Nook, having invested $300 million into the business in April 2012. . Read More