ProtoShare - ProtoShare is a web-based, collaborative wireframing and prototyping tool.
Stork.ai - AI-Based Collaboration for Hybrid Teams. Rich media messaging, advanced video and voice conferencing, auto-transcribing and screen sharing. Serendipitous meetings at the water-cooler with your human and AI teammates.
PowerMockup - Mockup & Wireframe toolkit for PowerPoint
Ring4 Meeting - Dead simple video conferencing - free, in browser
Wireframe.cc - Sweet and simple online wireframing tool.
Suttna - Keep every team member in the loop