A A first server, associated with a real estate agent, may receive an invitation to associate with a second server associated with a lender; output an acceptance of the invitation; receive an instruction to create a website; obtain property listings of the agent; create a first webpage based on the listings; output, to a third server associated with a vendor of services for real estate owners, another invitation to associate with the first server; receive an acceptance of the other invitation; associate the third server with the first server or the second server; create a second webpage that identifies the agent, the lender, or the vendor; output the website based on the first and second webpages; receive, from a user device via the second webpage, a service request; and output, to the second server or the third server, a referral that identifies the user device or a user thereof.