Osa.org is the online site of the Optical Society of America. It was founded in 1916 with scientific, technical, and educational purposes. It strives to increase and diffuse the knowledge of optics, pure and applied, and to promote the common interests of investigators of optical problems, of designers, and of users of optical apparatus of all kinds; and to encourage cooperation among them. The information provided at this website will help you learn more about the society, how to become a member, education, meetings, careers opportunities, and news about it. Becoming a member of the OSA gives you a full range of benefits including: free publications, members-only networking and online services, substantial meeting registration and subscription discounts, awards and distinctions, career services, and many more. The publications and technical meetings cover a large array of optics-related topics. As a member you can join up to five Technical Groups free of charge.