Signal-Based Prospecting: Find Buyers Already Looking for You

01 /The Concept

Overlead operates on a simple premise: the internet is a gold mine of warm leads hiding in plain sight. On Reddit and across social platforms, people are constantly posting things like "which tool solves this problem?" or "I'm using [competitor] but it's not working for me" or "help me choose between these two options."

Overlead surfaces those conversations – specifically the ones relevant to your product.

The workflow is minimal: paste your homepage URL or product page into Overlead, and the platform returns a list of relevant discussions. Some of those threads may have been posted only minutes earlier, which means you can be among the first to respond.

You drop a comment explaining how your product addresses the problem or why it beats the alternatives – and walk away with a signup or a sale.

There's a secondary benefit worth noting: those comments can improve your visibility in AI chat recommendations. ChatGPT, Gemini, and similar tools lean heavily on community discussions to generate product suggestions, since those threads contain real comparative context and authentic opinions. Showing up in the right threads means showing up in AI answers.

Overlead doesn't use subscriptions. You pay $5 per batch of roughly 25 discussion links – a mix of high-intent threads and freshly posted ones where you can still be an early voice.

The platform launched just last week, with the team announcing it on Product Hunt.

02 /Why It Matters

Overlead is obviously useful. But as it stands today, it reads more like a clever tool than a durable business.

As always, though, it's not about *what you build* technically – it's about *what you sell*, to whom, and how you frame it.

Take Rocksalt ([related review](/review/kak-naladit-pravilnyj-smm-vedushhij-k-prodazham)). It uses the same underlying approach – finding relevant discussions across Slack, LinkedIn, and Reddit – but sells it to B2B software companies hunting for enterprise buyers.

The insight driving that framing: today's B2B buyers increasingly begin their research on social media. They ask questions, compare options, consult AI assistants, download demos – and do most of this without ever talking to a salesperson. By the time they reach out to a vendor, 81% of B2B buyers have already built their shortlist independently. And companies end up buying from that shortlist 90% of the time.

For B2B product teams, this means the critical moment is at the very top of the funnel – when buyers are still browsing and discussing options in public communities. Get on their radar there, or don't get on it at all.

Rocksalt packaged that logic convincingly enough that Lightspeed Venture Partners – investors in Anthropic, Ramp, and other breakout companies – led two consecutive $3.5M rounds, in summer 2024 and summer 2025.

These startups are part of a broader shift away from cold outreach – calls, bulk email, and ads – toward signal-based prospecting.

The CEO of HubSpot put it plainly a few weeks ago: sending messages to prospects just because they fit an Ideal Customer Profile no longer converts. The play now is to track *signals*:

- Who is showing clear buying intent right now – posting questions in social communities, making direct comparisons.

- Who has experienced a change that might *soon* generate that intent – a new executive joined their company, they raised a funding round, they announced entry into a new market, or they started hiring heavily in a particular function.

Catch those signals fast and reach out first, and conversion rates can be an order of magnitude higher than cold contact.

The HubSpot CEO was naming a trend already well underway. Two recent examples:

FINNY ([related review](/review/chto-delat-s-dengami)) raised $17M in December to help financial advisors find prospects using behavioral signals – a lawyer earning $425K relocating to a new city, or a small business owner mentioning they're looking to sell.

Luxury Presence ([related review](/review/novye-klienty-ili-novye-sdelki)) raised $37M in January for a platform that helps real estate agents find potential buyers and sellers hiding inside their existing contact lists – flagging signals like a relocation post or a comment about wanting more space.

03 /Opportunities

The clear direction here is building signal-based prospecting platforms that identify buyers based on both stated intent (public questions and comparisons) and life-change signals that suggest intent is forming.

The key distinction from today's Overlead: sell a *product*, not a feature. A product built for a specific audience, with specialized signal detection tailored to the types of deals that audience is trying to close. Specialization always produces better results – and more defensible moats.

So – in which market vertical could you detect these signals, and who would pay the most to receive them?