Track Sign in users

Track Sign in users

On my website https://culytics.com, users can sign up using Linkedin. The site is built on Ning.com platform.

We grab the list of people every week from the website and import them into Zoho Contacts.

Question 1 - Can this be automated using Zoho Flow?
Question 2 - Can we track these users in SalesIQ as named users instead of id, since they are know on the website? What will it take to create this tracking?

Thanks