> ## Documentation Index
> Fetch the complete documentation index at: https://docs.parallellabs.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Choosing a Channel

> Reach the people you've found — by email, across social and content channels, and by listening for the moments worth replying to.

Once you have contacts, this section is how you actually talk to them: one-to-one outreach, broadcast email, published content, and monitoring for mentions worth responding to.

## In This Section

* **[Sequences](/engage/sequences)** — Multi-step outreach across email, LinkedIn, SMS, and voice, with A/B testing and reply tracking.
* **[Inbox](/engage/inbox)** — Connect sending mailboxes, warm them up, and manage replies with automatic classification.
* **[Content Engine](/engage/content-engine)** — Plan a strategy, generate on-brand content, research keywords, and produce images, audio, and video.
* **[Marketing Campaigns](/engage/marketing-campaigns)** — Send a one-off broadcast email to a Smart List using a saved template.
* **[Keyword Monitoring](/engage/keyword-monitoring)** — Track keywords across the web and social platforms, and get alerted to mentions.

## Sequences vs. Marketing Campaigns

Both send email, but they're built for different jobs:

|                    | Sequences                           | Marketing Campaigns           |
| ------------------ | ----------------------------------- | ----------------------------- |
| **Shape**          | Multi-step, over days or weeks      | One send                      |
| **Stops on reply** | Yes                                 | No                            |
| **Channels**       | Email, LinkedIn, SMS, voice, agents | Email                         |
| **Best for**       | Prospecting and follow-up           | Announcements and newsletters |

Use a sequence when you want a conversation. Use a campaign when you want to tell everyone something once.