• Trello: Kanban board for all kinds of purposes
• Slack: Discussion tool for Teams
• Zoom: Video conference tool
• Mural: Remote whiteboard tool. Operates like a super whiteboard. Very useful in for remote training and other facilitation.
• Mentimeter: Tool to develop interactive presentations such as surveys, exercises, and quizzes.
• Idea Boardz: “Card” oriented board to collaborate and brainstorm. Very useful for retrospectives, especially in remote situations.
• Pollev: Tool useful to setup a “lean coffee” and vote on subjects
• PI Planning: Tool aimed at remote PI Planning with good approaches to help the RTE get setup, and integration with ALM tools.
• Instant Agenda: Tool for “lean coffee” oriented tool collaboration and brainstorming.
• Lean Cafe: Purpose built (free) Lean Coffee tool.

• The Nouns Project: Source for “free” icons
• Pexels: Source for “free” images

As I set up my business, I come across tools I find useful. Perhaps you are looking for things like this as well:

• Dokuwiki Wiki system: I like the idea of a place where I can store information that is beyond a file service (hint to Dropbox et al - offer this type of application to put structure around files ). This is a personal place to capture “stuff”. This page you are looking at is part of my wiki and uses Dokuwiki. This site is built using DokuWiki.
• Pipe Drive: Simple customer relationship management (CRM) system based on Kanban style cards.