Abstract: The system of the present invention provides an E-learning platform that enables one or more student users to access teaching content that is in part user defined, from a variety of network-connected devices. In one aspect of the invention, the teaching content is user defined in that it is in part A) teacher generated or teacher assembled, and in part (B) student generated or student directed, as further explained below. A system, method and computer program is provided for creating content and dynamically updating content is provided based on meta data extracted from semantic analysis of content and of electronic social interactions among users and between users and content.

Abstract: A golf club shaft that holds a disc-type or spike-type golf marker is disclosed. For disc-type ball markers, the top of the shaft may feature a partially raised circumference and lip such that the disc marker may be slid into the part of the circumference that is not raised and may be retained there by tension. For spike-type ball markers, a plurality of hinged, pie-shaped members line the circumference of an opening and are urged inward. The pie shaped members may retain the spike of the golf marker.