SevensAndNines provides information and resources for ARM MCU development. Here you can find information about ARM based devices, software, tools and development boards, you can search for trainings and seminars, and look for answers to any queries about ARM development in the forum section. SevensAndNines is provided and maintained by IAR Systems. The site is supported by a large number of chip vendors as well as many other companies working with the ARM architecture and supporting it with products and services. The supporters provide some of the content on the site, while other parts of it come from the users.

Website: http://www.sevensandnines.com/