The Halswell Community website has a wide variety of information about Halswell and the surrounding area. Free subscription to the monthly e-mailed newsletter will keep you informed on ongoing developments and events. Printed copies are available in the library.
http://www.halswellcommunity.net.nz
Online U3a has a wealth of information about courses available for self study plus check out the GEMs newsletters. No need to have login details unless you want to subscribe to a course.
http://u3aonline.org.au