1 Controlling electricity with light signals: Light-activated thyristors transform electronics 2 Facebook Adds Option to Follow Topics of Interest 3 Facebook Introducing “Green Screen” for Live Videos 4 Elon Musk Announces Twitter’s Space Internet Integration 5 Twitter Adds ‘Local Heritage’ Sites 6 Twitter Launches ‘Twitter for Toy Collectors’ 7 Elon Musk’s Twitter: Challenges and Opportunities 8 Alumina Ceramic Blocks: Structural and Functional Materials for Demanding Industrial Applications metallurgical alumina 9 Hollow Glass Microspheres: Lightweight Inorganic Fillers for Advanced Material Systems hollow plastic microspheres 10 Study Examines Twitter’s Economic Impact 11 Twitter’s Effect on Language and Communication