The single highest-leverage compounding sourcing method is the post monitor. Set it up once, the tool re-scrapes a target post on schedule, captures every new commenter, and adds them to a running list. Wake up Monday with fresh warm leads from the previous week's engagement.
Why post monitors compound
- Set once, harvest forever. No daily manual work after setup.
- Catches new commenters as they engage. Window stays warm.
- Layered with other sourcing. Plus signals + plus events = continuous lead pipeline.
- Hard for competitors to copy. They'd need to know which posts you're monitoring.
Step-by-step
Step 1: Pick the right posts to monitor
Criteria:
- Author posts frequently (weekly+) with consistent high engagement
- Audience matches your ICP
- Posts get 100+ comments (volume to harvest)
- Topics stay evergreen (not one-off launches)
Best targets: competitor founders, B2B thought leaders in your space, industry journalists, well-known agency owners.
Step 2: Open the post in Chrome
Click into the specific post you want to monitor. URL must include `/feed/update/`.
Step 3: Click Lead4Linked, choose "Set up monitor"
The extension prompts you for monitoring frequency: daily, every 3 days, or weekly. Weekly is the sweet spot for most B2B use cases (less LinkedIn API pressure, still catches commenters within outreach window).
Step 4: Configure filters at setup
Set the filters once: job title, company size, location, seniority. New commenters matching your filters get auto-tagged for outreach. Anyone outside your ICP gets silently filtered.
Step 5: Connect to a campaign (optional, Outreach plan+)
If you have the Outreach plan, link the monitor to a LinkedIn campaign. New commenters automatically enter your sequence. Fully autopilot.
Step 6: Check weekly and harvest
Every Monday, check the dashboard. New commenters from the last 7 days are listed. Send connection requests with personalized references to the post.
Recommended monitoring targets by industry
| Your industry | Profiles to monitor |
|---|---|
| B2B SaaS sales tools | Toinon Georget (Waalaxy), Brice Maurin (LGM), Guillaume Moubeche (Lemlist), JB Jézéquel (Evaboot) |
| Recruiting tools | Lou Adler, Glen Cathey, Hung Lee |
| Marketing tools | Rand Fishkin, Justin Welsh, Emma Stratton |
| French B2B | Stan Leloup, Benoît Dubos, Toinon Georget |
Set up your first 3 monitors free.
Post monitor available from Pro tier. Free 100-lead trial includes 7 days of Pro features.
Start freeFAQ
How often should monitors run?
Weekly is optimal. Daily creates more noise; less frequent risks missing the warmth window.
Can the monitored author detect monitoring?
No. Monitoring scrapes the public commenters list, same as a manual visit. The author sees normal traffic.
What plan do I need for monitors?
Pro tier ($29/mo) includes 5 active monitors. Outreach tier 15 monitors. Business unlimited.