REAPER (short for Rapid Environment for Audio Prototyping and Efficient Recording) is a powerful and professional multi-track audio recording, arranging, editing, mixing and rendering tool primarily designed by former developers from Winamp. It is suitable for both audio enthusiasts and professionals.

Since the first edition of Universal Principles of Design published in 2003, it has been trusted by millions of readers from 30+ countries around the world. Its second edition (published in 2010) made a large amount of enrichment and modification to the content of first edition, and added 25 new rules.

To celebrate the 30th anniversary of the classic action arcade video game series Double Dragon (first published by Techn?s Japan in 1987), Arc System Works launched its latest orthodox sequel on PlayStation 4 and PC in 2017 - Double Dragon IV (??????? 4, DD4 for short). It's been 27 years since its last work Double Dragon 3 (published on arcade console in 1990)!

Turbo Studio (formerly called: Spoon/Xenocode Virtual Application Studio, or Spoon/Xenocode Studio for short) is a user-friendly application virtualization tool. It can encapsulate all files required by a program in a virtual container, supports customization and pre-configuration of the virtualized applications.

Skype is currently the world's most popular free HD instant messaging software (and VoIP) for all kinds of desktop and mobile platforms. Low system resource requirement, high-quality voice communication and high stability have won its hundreds of millions of users around the world. After acquired by Microsoft in 2011, it became an independent department of Microsoft. And in 2013, if finally replaced Microsoft's own instant messaging tool MSN. In 2014, it released an embedded web version.