I’ve been a Notary Café Professional member from the onset of my services within this Business Sector. I value my membership here for a variety of reasons. Regularly, clients new to me say they found me on Notary Café, which as a business owner is very helpful information.
Although, it’s important to keep in mind that most clients don’t lead their conversation with how they located you (not germane to the objective of their call).
So, in order to know where your business leads are originating from, the onus is upon you to include in your questions to new clients: “Oh, how did you locate/find my services please?”
This will help you know where your marketing budget is supporting your business and where it is lackluster . . .
Best wishes with your decision. 
P.S. Some clients utilize Notary Cafe’s platform to provide document access & shipment tracking.
Truly, this forum is priceless for numerous reasons! I appreciate their website revisions & maintaining current relevancy. The Pro Membership is very much worth it as a Directory to advertise the services you provide and for access to the forums as well.
Also, here are some germane threads on this topic already in the Notary Cafe forum database: