Abstract: The present invention relates to the means for attaching gadget on a stroller using an elastic holder to wrap around the stroller. Using the elastic self-wrapped holder, the lighting device or gadget is easily and conveniently secured on the stroller without any tool, thereby saving time and effort of parents. The elastic self-wrapped holder does not distort or damage the stroller. The elastic self-wrapped holder is versatile and can firmly secure a lighting device or gadget to any parts of stroller. The elasticity of the material used for the holder can conform to gadget of various sizes and shapes thereby firmly grip and tightly fit the gadget.

Abstract: A system for controlling communications between instructors and students relating to specific coursework. Instructors create courses and profiles relating to courses. The profile includes information regarding the course and the communication requirements. When a course is accepted by a student, the system controls the communications between instructor and student in accordance with the requirements. The system includes other programmed modules for monitoring performance, providing feedback on performance, and controlling the flow of payments.

Abstract: A data mining system to improve selection of targeted advertisements. The system includes monitoring, capturing, and analyzing data from a user, and selecting appropriate advertisements to match a current user's activity.