A method is disclosed for identifying and rating desirable real estate listings and posting them on the internet with other highly desirable listings. An agent may post only one listing at a time, either his/her own listing or, with permission, a listing of another agent. A submitted comparative market analysis (CMA) is validated, or “swept, ” after which a “scrubbing” formula is applied to determine “threshold” prices. The listing is only posted if its listing price is below a threshold price. Embodiments include ratings of postings and of posting agents. Additional categories can be included for postings that are not below a threshold price. Listing agent commissions can be higher than posting agent commissions. Referral fees can be paid to listing or posting agents who do not participate in sales that result from postings. In embodiments, an agent cannot post a listing belonging to another agent in the same office.