Imakiku - Imakiku is an audience response system for real-time voting, posting comments, and surveying.
SlideModel.com - Create attractive presentations with our professional PowerPoint templates, slide designs, and themes. Use our PPT templates and slide designs to give unique appearance to your presentation.
Pingo - Optimize images for the web quickly 🖼️⚡
SlidesPPT - Beautiful free presentation templates for Google Slides
schnaq - Create an engaged and interactive audience with the schnaq Q&A, polls and more.
Slidesgo - An extensive catalog of free Google Slides themes and PowerPoint templates.