Yahoo has been active in the company's trading market recently

Absrtact: Yahoo has recently been active in the company's trading market, and has purchased a to-do application Astrid, a real-time polling tool Gopollgo, a flight search application milewise and a mobile gaming start-up Loki Studio that has not been reported previously. Yahoo buys more than four startups

Yahoo has recently been active in the company's trading market, buying a to-do application Astrid, a real-time polling tool Gopollgo, a flight search application milewise and a mobile gaming start-up Loki Studio that has not been reported previously.

Yahoo buys more than four start-ups, part of which is product acquisitions, and partly talent acquisitions. Yahoo welcomed 22 entrepreneurs from four companies on its official Twitter show in Friday.

Yahoo is now eager to replenish its mobile team by acquiring mobile startups and keeping its outstanding team at the same time as a quick addition to its employees.

Yahoo also showed interest in buying big companies, and last week a foreign media company CEO Marissa has had contact with Hulu executives at video sites to discuss acquisitions.