Jing is a free screencasting software that allows users to take snapshots of webpages or documents, record short videos, and share content easily through email or instant messaging. It has a simple interface that is easy to learn. Camtasia Studio costs $299 but offers more advanced editing features and the ability to record full presentations. It produces high-quality videos suitable for online courses. While Jing is sufficient for basic sharing, Camtasia is recommended for creating professional online course content.