The document discusses the semantic web and how it uses standards like SCORM to organize online educational content and learning objects. SCORM allows content to be aggregated, launched, sequenced and learner progress tracked. Learning objects can be any digital resources like images, documents or courses that can be reused, repurposed or adapted. Communities of practice are groups that share knowledge over time through collaboration. Trends in online learning include value of investment over return on investment and generating learning objects through communities of practice.