# Channels

> Where a worker operates: Slack, email, and the web. And the events in those channels that make it act.

Ergoly Docs › Workers. Web: https://www.ergoly.ai/docs/workers/channels · Index: https://www.ergoly.ai/docs/llms.txt

A **channel** is anywhere a worker can be reached. Slack is where it lives: channels, direct messages, group messages. Email is a second address for the same worker. The web is for other systems: a URL they can post to, and the API.

An **event** is something that happens in a channel: a message, a mention, a scheduled routine firing, a delivery to a webhook. Every event starts a worker working, and ends with an answer back where the event came from. See [Events](https://www.ergoly.ai/docs/workers/channels/events).

- [Slack](https://www.ergoly.ai/docs/workers/channels/slack): Internal channels, client channels, DMs, group DMs.
- [Email](https://www.ergoly.ai/docs/workers/channels/email): Sending now; receiving coming soon.
- [Web](https://www.ergoly.ai/docs/workers/channels/web): Hooks, triggers, and the API.
- [Events](https://www.ergoly.ai/docs/workers/channels/events): Everything that makes a worker act.