UICloud is a fresh project. Launched in July 2012 it already provides over 25,000 UI Elements in over 1,000 UI sets. All the resources can be used free of charge, individual licenses apply. Jack Cai, a Southampton (UK) based Chinese freelance icon and GUI designer, did a great job. The platform is intuitive, even fun to use. The design is modern and elegant, the content is neatly arranged. Enough reason to look deeper into it.