I've been working on getting my SaaS product listed in B2B directories like Capterra, GetApp, SaaSmax, and G2 Crowd. We're now listed about a dozen of these, and I've sat through more than a few followup sales calls pitching advertising on the sites. They seem to make sense, like they're Yelp for people looking for software solutions, and you're buying advertising for your product as if you were buying ads for your restaurant on Yelp.
However, organic traffic referrals from those sites are virtually non-existent. We're willing to try limited advertising if it works, but are super hesitant to commit to something like a fixed spend per month that some places are asking when we don't have any indication that advertising would be effective.
Anyone have any success with B2B directories and could share insights on how to properly leverage to obtain more customers?