Communication is essential to collaborating with programmers online. To keep your collaborators updated, ask questions, share ideas, and give feedback, it's important to communicate regularly and respectfully. When doing so, use the appropriate channel for the purpose and urgency of your message. For instance, chat for quick questions, email for formal requests, and video for complex discussions. Additionally, be clear, concise, and polite in your messages. Avoid jargon, slang, and sarcasm; use emojis, gifs, and memes sparingly and appropriately. Respect the time zones, schedules, and preferences of your collaborators; don't expect immediate responses or interrupt their work. Agree on the best times and methods to communicate with each other. Lastly, provide constructive and specific feedback. Don't criticize or blame your collaborators; focus on the code instead of the person. Explain the reasons and suggestions for your feedback.